Yes, there are several variants of Blackjack available online, each offering unique rules and gameplay features. Classic Blackjack is the standard version, but other variants like European Blackjack use a different card-dealing system, where the dealer's second card is revealed later. Atlantic City Blackjack and Vegas Strip Blackjack offer slight rule variations, such as the number of decks used and whether players can double down after splitting. Spanish 21 uses a deck without 10s but includes player-friendly rules like doubling down after splitting. Other popular variants include Blackjack Switch, where players can swap cards between hands, and Pontoon, which has a few different rules for the dealer and winning hands. Super Fun 21 offers unique bonus payouts, and live dealer Blackjack allows players to experience the game with a real dealer through video streaming. These variants provide a range of options, allowing players to choose the version that best fits their preferences and strategies.