Entertainment
- Posh (album), a 1980 album by Patrice Rushen
- "Posh!", a 1968 song from the musical Chitty Chitty Bang Bang
- POSH (TV series), a 2006 Philippine television drama
- Posh (play), by the British playwright Laura Wade, first staged in 2010
- "The Posh", a nickname for Peterborough United F.C., an English football club
- Victoria Beckham, as "Posh Spice" a member of the Spice Girls, later one half of Posh and Becks, an English celebrity couple
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