Pontoon may refer to:
Buoyant devices Float (nautical), an air-filled structure providing buoyancy Any of various objects that float on pontoons, including: Pontoon (boat), a flat-bottomed boat supported by two or more pontoons Floatplane, also known as a pontoon plane Floating dock (jetty), a platform supported by pontoons Pontoon bridge, a bridge supported by shallow draft open boats or encased floats
Entertainment and media Pontoon (card game), a mainly British card game similar to blackjack (also known as vingt-et-un or 21) Malaysian Pontoon, the variant of pontoon popular in Australian/Malaysian casinos "Pontoon" (song), a song by Little Big Town Pontoon: A Novel of Lake Wobegon, a 2007 book by Garrison Keillor
Other uses Ponton (automobile), or Pontoon style, the automobile fender style Pontoon, County Mayo, Ireland