A lame duck situation generally refers to a time frame between a decision and its implementation.

It may also refer to:

• Lame duck (politics), an elected official who is approaching the end of his or her tenure, and especially an official whose successor has already been elected
• Lame duck session, a legislative session that takes place after an election but before newly elected members are seated
• Lame duck (game design), a player in a game who cannot win, yet remains in the game
• Lame Ducks (TV series), a British sitcom
• Lame Duck Amendment, an informal name for the Twentieth Amendment to the United States Constitution
• Lame duck season, in professional sports, a season prior to or during which a team has announced its intent to relocate to another metropolitan area but will remain in its existing home until the next year. Examples include:
  • 1995 Cleveland Browns season, in which the team's reorganization in Baltimore was announced midway through
  • 1996 Houston Oilers season, in which the team's move to Tennessee was announced beforehand
  • 2017 Oakland Raiders season, in which the team's intent to move to Las Vegas was announced before the season and did not occur until after three full seasons in Oakland
• Brain Donors, a 1992 film originally titled Lame Ducks