William Salmond Thomson Penman (7 August 1939 – December 2017) was a Scottish footballer, who played for Rangers, Newcastle United, Swindon Town, Walsall, Dundalk and Seattle Sounders. Penman was a used substitute as Swindon won the Football League Cup in 1968–69. He later managed for a season at Cheltenham Town in 1973. He then played in the NASL for Seattle Sounders. Penman died in December 2017.