James Leslie Armstrong (16 June 1887 – 4 December 1964) was an Australian rules footballer who played with Geelong in the Victorian Football League (VFL).
Armstrong, a defender, came to Geelong from the Mercantile Football Club.
He was used mostly in the back pocket and as a half back flanker.
Durable, he put together 91 consecutive games from 1909 to 1913.During World War II he served in the Volunteer Defence Corps, enlisting in Frankston in 1942.