• Foul (sports), an unfair or illegal sports act, including:
  • Foul (football), in football (soccer), an unfair act by a player as deemed by the referee
  • Professional foul, in football (soccer) or rugby, a deliberate act of foul play, usually to prevent an opponent scoring
  • Foul (basketball), a breach of the rules that concerns illegal personal contact with an opponent
    • Personal foul (basketball), illegal personal contact with an opponent
    • Technical foul, in basketball, unsportsmanlike non-contact behavior, a more serious infraction than a personal foul
    • Flagrant foul, in basketball, unsportsmanlike contact behavior, considered the most serious foul and often resulting in ejection
• Foul ball, in baseball, a batted ball that lands in foul territory

• Denna artikel behandlar termen "foul" inom basket. För termen "foul" inom snooker, se Foul (snooker)

Il fallo può provocare sanzioni quali espulsione dal gioco, sospensione dello stesso, squalifica, penalizzazioni. Si intende per fallo la violazione eseguita in uno sport o gioco di squadra o con avversario, quindi ai danni di giocatori della squadra avversaria o del singolo.

1. 野球において、打者の打球がフェアゾーンに入らなかったもの。ファウルボールを参照のこと。
2. サッカー、バスケットボール、レスリングなどにおける反則の一つ。
   1. サッカーにおけるファウルはファウル (サッカー)を
   2. バスケットボールにおけるファウルはファウル (バスケットボール)を参照のこと。