Jack Lyons may refer to: Jack Lyons (cricketer) (1863–1927), Australian cricketer Jack Lyons (financier) (1916–2008), British entrepreneur and philanthropist Jack Lyons (footballer, born 1912) (1912–1988), Australian rules footballer for Geelong Jack Lyons (footballer, born 1919) (1919–1955), Australian rules footballer for Essendon and North Melbourne Jack Lyons (soccer) (born 1901), American soccer player J. B. Lyons (Jack Binignus Lyons, 1922–2007), Irish medical historian and writer