Mike Brown (born 4 September 1985) is a former English professional rugby union player who played fullback or wing. Brown joined the Harlequins senior team in 2005, having played youth rugby at Salisbury and Melksham, and played 382 times for the London club. Brown began playing for the England first team two years later and earned 72 caps. Between 2021–2022 Brown played a season for Newcastle Falcons and finished his career for Leicester Tigers. He retired as the player with the fourth most appearances in Premiership Rugby history and 8th most tries.

During his career, he has won 3 Six Nations Championship titles with England and two Premiership Rugby titles with Harlequins.