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Online Blackjack

Blackjack, also commonly referred to as 21, is widely considered the world’s most popular casino game. It’s fun, easy to learn, and with a little bit of simple strategy and practice, players can reduce the house’s edge making it one of the more winnable games at the casino.

There are several variations of Blackjack available to play, especially when playing online. The slightest of rule changes can change a player’s odds against the dealer and it’s important to know what options you have when picking a casino.

Here at CasinoSource, we’ve compiled a ranked listing of our preferred Blackjack destinations based on things such as game variations, graphics, gameplay and any other unique characteristics that may affect your experience at the table. Find your table below and start winning big!

Editors' Picks - Top Irish Sites For Blackjack

Dunder Casino
Rating 9.9/10

Dunder Casino

21 is waiting for you at Dunder Casino!

  • Dealer must hit on soft 17s
  • Instant-play games load and play quickly and cleanly
  • Powered by the industry-leading Evolution Gaming

Game Variations: Live Blackjack, Pontoon, Blackjack Pro, Single Deck Blackjack Pro

Try your hand at online blackjack with Dunder!

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€600 Welcome Bonus + 200 Free Spins!
Casino Room
Rating 9.8/10

Casino Room

Pick from an endless list of blackjack games at Casino Room!

  • Dealer must draw to 16 and stay on all 17s
  • Live dealers available
  • Multiple deck variants offered

Game Variety: 21 Burn Blackjack, American Blackjack, Atlantic City Blackjack Gold, Blackjack Live Dealer, Classic Blackjack Gold, European Blackjack, Multi-Hand Premier Blackjack, Pirate 21 Blackjack Gold, Pontoon, Premier Blackjack High Streak Gold, Single Deck Blackjack, Super 7 Blackjack

Selection is king with blackjack at Casino Room!

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100% Welcome Bonus worth up to €500 + 200 Free Spins!
All Irish Casino
Rating 9.7/10

All Irish Casino

Hit your next 21 with a little luck from the Irish at All Irish Casino!

  • Dealer must draw to 16 and stay on all 17s
  • Powered by Net Entertainment and Microgaming
  • Live-dealer blackjack offered

Game Variations:: Blackjack Pro High Limit, Blackjack, Blackjack Classic, Blackjack Double Exposure, Blackjack Double Exposure High, Blackjack Double Exposure Low

Utilize 888's industry-leading customer service!

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100% Welcome Bonus worth up to €1,000 + 22 Free Spins!
Rating 9.5/10


Join the blackjack party at partycasino!

  • Dealer must hit on soft 17 and stand on 17 or more
  • Proprietary software used for all games
  • Large variety of blackjack games

Game Variations: Blackjack Multi-Hand Pro, Blackjack Single Deck, Blackjack Bonus Pairs, Blackjack High Limit, Blackjack Single Player, Multi-Player Blackjack, Multi-hand Blackjack, Live Dealer Blackjack, Live Dealer Blackjack Macau

Try your luck at blackjack with partycasino!

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100% Welcome Bonus worth up to €100! PROMO CODE: WELCOMEBONUS
Coral Casino
Rating 9.4/10

Coral Casino

Intuitive controls and slick design make playing at Coral a pleasure for players!

  • Dealer must draw to 16 and stay on all 17s
  • Online games built on Playtech software and live games maintained by Evolution gaming ensure top notch gameplay
  • Quality streaming game play on all operating systems

Game Variations: Classic Blackjack, American Blackjack, Blackjack Peek, Blackjack Switch, Blackjack Surrender, Progressive Blackjack, Live Blackjack

Coral offers generous bonuses in addition to a variety of games types sure to appeal to blackjack players of all types!

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150% Welcome Bonus worth up to €300!
888 Casino
Rating 9.2/10

888 Casino

It doesn't get more fun than blackjack at 888 Casino!

  • Dealer must draw to 16 and stay on all 17s
  • Proprietary software
  • Download version highly recommended but instant play browser version still available

Game Variations:: Classic Multi-Hand Blackjack, Crazy Blackjack

Utilize 888's industry-leading customer service!

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Exclusive 100% Welcome Bonus worth up to €1,500!
Casumo Casino
Rating 9.2/10

Casumo Casino

Hit 21 at Casumo Casino!

  • Dealer must draw to 16 and stay on all 17s
  • NetEnt powered games
  • Multiple variants on offer

Game Variations: Multi-Hand Blackjack, Single Deck Blackjack, Live Blackjack

Win big playing online blackjack at Casumo Casino!

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€1,200 Welcome Bonus + 200 Free Spins!
Leo Vegas Casino
Rating 9/10

Leo Vegas Casino

Test your blackjack skills with Leo Vegas Casino!

  • Dealer must draw to 16 and stay on all 17s
  • NYX Gaming Group custom design
  • All blackjack games accessible through downloaded and browser casinos

Game Variations: Classic Multi-Hand Blackjack, American Blackjack, European Blackjack

Maximize your earnings with blackjack at Leo Vegas!

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200% Welcome Bonus worth up to €1,600 + 120 Free Spins!
SunBets Casino
Rating 9/10

SunBets Casino

Classic blackjack play as well as unique variations can be found at the brand new SunBets Casino!

  • Dealer must draw to 16 and stay on all 17s
  • Live Dealer available
  • Many game types to choose from

Game Variations: Multihand 5 Blackjack, UK Blackjack, Blackjack Switch, Perfect Blackjack Multihand 5, Blackjack Surrender, Live Blackjack

SunBets Casino is the place to play for multihand enthusiasts!

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100% Welcome Bonus worth up to €100 + 25 Free Spins!
Royal Panda Casino
Rating 8.8/10

Royal Panda Casino

Royal Panda has 8 different blackjack offerings!

  • Dealer must draw to 16 and stay on all 17s
  • Multiple deck options
  • Renowned professional dealers

Game Variations: Royal Panda Live Blackjack, Blackjack Professional Series, Live Blackjack, BlackJack, Blackjack Party, Blackjack Classic, Double Exposure Blackjack, Single Deck Blackjack Professional Series

Get ready to win big playing blackjack at Royal Panda Casino!

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100% Welcome Bonus worth up to €300!
No Bonus Casino
Rating 8.7/10

No Bonus Casino

Your next big hand is waiting at No Bonus Casino!

  • Dealer must draw to 16 and stay on all 17s
  • Offers variants from both NetEnt and Microgaming
  • High Limit and Low Limit variants offered

Game Variations:: Blackjack Classic, Blackjack, Blackjack Double Exposure, Blackjack Double Exposure High, Blackjack Double Exposure Low, Blackjack High Limit, Blackjack Low Limit, Blackjack Pro High Limit, Blackjack Pro Low Limit, Blackjack Single Deck, Blackjack Single Deck High Limit, Blackjack Single Deck Low Limit

Find your limit (High or Low) playing blackjack at No Bonus Casino!

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10% Cashback, No Strings Attached!
Paddy Power Casino
Rating 8.6/10

Paddy Power Casino

Paddy Power certainly knows their blackjack!

  • Dealer must draw to 16 and stay on all 17s
  • Progressive version offered
  • Rarely found Pontoon available to players

Game Variations: Classic Blackjack, Perfect Blackjack, Blackjack Surrender, Double Attack Blackjack, 21 Duel Blackjack, Progressive Blackjack, Pontoon, Blackjack Switch, Blackjack Peek, Blackjack Pro, Lucky Blackjack

Checkout Pontoon at Paddy Power and see what it's all about!

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€10 Free + €500 Welcome Bonus!
EuroGrand Casino
Rating 8.6/10

EuroGrand Casino

Try one of EuroGrand's unique twists on the classic blackjack formula!

  • Dealer must draw to 16 and stay on all 17s
  • Powered by Playtech
  • Tremendous game variety

Game Variations:: Blackjack Multihand 5, Live Blackjack, 21 Duel Blackjack Multihand, Unlimited Blackjack, Live, Perfect Blackjack Multihand, Double Attack Blackjack, Blackjack Super 21, Progressive Blackjack Multihand, Blackjack Surrender Multihand, Blackjack Scratch

Choose from live or simulated play!

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€1,000 Welcome Bonus + 25 Free Spins!
Bet365 Casino
Rating 8.4/10

Bet365 Casino

Have a blast playing blackjack with Bet365!

  • Dealer must draw to 16 and stay on all 17s
  • Playtech software used Blackjack offered in downloadable casino

Game Variations: Blackjack, Live Blackjack, Blackjack Surrender, Blackjack Surrender MH, Blackjack Switch

Interactive with live dealers at Bet365's Live Blackjack!

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100% Welcome Bonus worth up to €100!
Guts Casino
Rating 8.3/10

Guts Casino

See for yourself why players love blackjack at Guts Casino!

  • Dealer must draw to 16 and stay on all 17s
  • Multiple credible software partners
  • No downloadable version available

Game Variations: Classic Blackjack, Multihand Blackjack, Pontoon, Live Blackjack, Super 7 Blackjack

Captivating graphics will keep you coming back to Guts!

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100% Welcome Bonus worth up to €300 + 100 Free Spins!
Winner Casino
Rating 8.2/10

Winner Casino

Winner offers a bevy of ways to reward loyal players!

  • Dealer must draw to 16 and stay on all 17s
  • Playtech software provides players with familiar and crisp design
  • Download and flash versions available

Game Variations: Classic Blackjack, Progressive Blackjack, Live Blackjack, Multiplayer Blackjack, Blackjack Surrender, Blackjack UK

Play blackjack at Winner today to become a member of the 'Winners Club!'

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200% Welcome Bonus worth up to €300!
William Hill Casino
Rating 8.1/10

William Hill Casino

From the looks of it, William Hill specializes in quality blackjack!

  • Dealer must draw to 16 and stay on all 17s
  • partnered with Playtech
  • Revamped site including graphics and gameplay

Game Variations: Blackjack, Blackjack UK, Blackjack Switch, Blackjack Surrender, Progressive Blackjack, 21 Duel Blackjack, Live Blackjack

See what's new at William Hill Casino!

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150% Welcome Bonus worth up to €150!
Mr Green Casino
Rating 8/10

Mr Green Casino

Blackjack lovers won't be disappointed with Mr Green Casino!

  • Dealer must draw to 16 and stay on all 17s
  • Veteran live dealers
  • Noteworthy graphics

Game Variations: Live Blackjack, Double Xposure Blackjack, Players' Choice Blackjack

Stellar graphics makes blackjack a can't miss at Mr Green!

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100% Welcome Bonus worth up to €350 + 100 Free Spins!
Casino Cruise
Rating 7.8/10

Casino Cruise

Casino Cruise is a new and impressive addition to the online casino world!

  • Dealer must draw to 16 and stay on all 17s
  • Players are sure to find the blackjack game of their choice
  • Built on the instant play philosophy

Game Variations: European Blackjack, Premier Blackjack, Multi Hand Blackjack, Vegas Blackjack, Spanish Blackjack

Casino Cruise boasts a truly impressive selection of games!

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150% Welcome Bonus worth up to €300 + 100 Free Spins!

The Best Irish Online Blackjack Guide 2017

Blackjack is one of the most-loved casino games of all time, second only to poker in the hall-of-fame gaming stakes. Online blackjack is hugely popular because it offers quick and easy casino entertainment straight from the comfort of your own home. There’s a variety of blackjack games to play at many of the world's top online casino sites. To help you decide which ones to place your bets on, check out our 2017 Ireland blackjack casinos guide below.

Finding the Best Blackjack Casino Sites Online

With so many blackjack sites available, there are a few things you want to look for before settling on your blackjack casino. The best blackjack casino sites will offer all the variations of blackjack, including live blackjack play with real dealers. You want to pick a top-rated site that’s popular with casino players. You should find a top blackjack site that’s easy to use with a well presented virtual table that provides fuss-free gaming.For recommendations, be sure to check out the list above of our editor's picks for the Top Irish Sites For Blackjack!

Types of Blackjack Variations

There are many types of blackjack games, with variations of the casino classic played across different countries and different casinos. Here are some of the most popular blackjack variations.

  • Surrender Blackjack | This is a form of blackjack that allows players to surrender their hand and receive half the bet back.
  • Perfect Blackjack | This variation of the game gives players the chance to place up to five blackjack side bets, otherwise the rules are just like regular blackjack with the dealer sticking on 17.
  • Pontoon | Usually played with eight decks, this version uses the standard blackjack rules with the player receiving two face up cards and the dealer receiving two face down cards.
  • Switch Blackjack | The player gets two hands instead of one in this blackjack game, with the option to switch the top two cards between hands.
  • Multi-Hand Blackjack? | This is a variant of the game that allows players to play more than one hand per game.

Blackjack Strategy: When to Split or Double Down

Every blackjack player should learn the blackjack strategy that enables you to bring the house edge down to a minimum. It’s a proven method that teaches the player whether to hit or stand on certain cards. It also suggests when to double down or split cards. The strategy advises on live blackjack and online blackjack to splitM on a pair of aces or a pair of eights. This is because it would boost the player’s chances of getting closer to 21. Doubling down is when the house allows you to double your bet after the cards have been dealt. The best strategic move would be to double down on a 10 or 11 as you then have a 30% chance of hitting blackjack. Make sure you take a good look at the blackjack strategy before hitting the blackjack table to maximise your chances of coming away with full pockets.

Blackjack Rules: How to Play Online

Blackjack is a very simple game to play. Hence why it’s so popular among casino players. The aim of the game is to get closer to 21 than the dealer (it’s always the player versus the dealer). Two cards are initially dealt with the player choosing to ‘stick’ (no more cards) or ‘hit’ (another card is dealt to the player). The most popular version of blackjack sees the dealer having to stick when they reach 17 or over. Players can hit as many times as they like but once they go over 21, the dealer wins. The best possible blackjack hand is called ‘blackjack’, which is an Ace and a face card (10) which gives you 21. This usually pays out 1.5x your wager. The amount of decks used in the game usually depends on the casino. There are a few other blackjack rules to be aware of, too:

  • Splitting Pairs | If the player’s first two cards are the same then they can split them into two separate bets.
  • Doubling Down | Players have the option to double their wager if they land a total of 9,10 or 11 on their first two cards.
  • Insurance | When the dealer’s face-up card is an Ace, players can make a side bet (up to half the original bet) that the dealer’s other card is a face card. If it’s a face card then your side bet pays 2 to 1.

Top-Rated Blackjack Games 2017

Blackjack is widely played online across live dealer tables, virtual tables and 3D tables. Here are some of the top-rated blackjack games to enjoy online.

  • Pontoon | This much-loved version of the game has stood the test of time and will continue to be a solid favourite for casino players.
  • Multi-Hand Blackjack | This game suits the blackjack expert, allowing them to play several hands at the same time and brings even more blackjack action to the felt.
  • Switch Blackjack | This a new version of the game and is proving to be a popular choice. Not all casinos offer this variation of the game.

History of Blackjack

Blackjack is one of the oldest casino games out there. This table classic that has now become the most famous form of gambling allegedly started in France or Spain in the 18th century (although this is still debated). The game was called ‘Vingt-et-un’ which translates to ‘21’. In Spain, it was called ‘Trente-un’ which translates to ‘31’. It’s even been referenced in books written way back in the 1400’s. These older games involved cards and reaching a certain number but are not exactly the same as modern blackjack. They did however lay the foundations for the casino favourite we know and love to this day. Why not enjoy a slice of card game history today.