Ken Leahy (22 September 1906 — 27 January 1985) was an Australian rules footballer who played with Geelong in the Victorian Football League (VFL).
Leahy, a Western Australian, started his career with West Perth but was at Goldfields club Kalgoorlie Railways when cleared to Geelong in 1925.
He was on a half back flank in Geelong's 1925 premiership team.