Gambling terms, explained straight

Poker

4-card Omaha poker

4 card omaha poker is another name for Omaha hold 'em, a community-card poker game where each player is dealt four private cards and must combine exactly two of them with three of the five community cards to make a five-card hand.

Hole cards
4 per player
Community cards
5
Hand requirement
Exactly 2 hole cards + 3 board cards 2

Key points

  • Players are dealt four private cards, then share five community cards in standard betting rounds 1.
  • At showdown, each player must use exactly two hole cards and exactly three board cards to form a five-card hand 2.
  • The unused hole and board cards do not affect hand ranking.

Where this term is used

Not the same as

  • 5 card poker rules — a broader category of poker hand evaluation, while 4 card omaha poker specifically requires the 2-from-hand, 3-from-board rule
  • 5-card Omaha strategy — a strategy for a variant with five hole cards, whereas standard Omaha uses four hole cards

Sources

  1. Omaha hold 'em en.wikipedia.org Defines Omaha hold 'em and confirms the four-hole-card deal and 2+3 hand rule.
  2. Omaha Poker - card game rules pagat.com Provides the exact rule that players must use exactly two hole cards and three community cards.

Sources are drawn from regulators, universities and published research, and each one is labelled with what it actually is — a preprint is not called a paper. Bookmaker and affiliate pages are never cited here, because a page that sells betting is not a neutral authority on it.