Mary Oshlag (1942–2021) was an American bridge player. Mary was a national champion. Her husband, Richard Oshlag, is also a national champion.

Mary was the inventor of "Eight is Enough", an event that encourages stronger players to play with weaker players.

Bridge accomplishments Wins North American Bridge Championships (1) Truscott Senior Swiss Teams (1) 2011

Runners-up North American Bridge Championships (2) Chicago Mixed Board-a-Match (1) 1989 Wagar Women's Knockout Teams (1) 1999 Australian Bridge Championships (1) Australian Women Open Teams (1) 1997

The Chicago Mixed Board-A-Match is now known as the Freeman Mixed Board-A-Match.

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