Giacomo Blason (born 19 March 1914 in Fiumicello; died 3 February 1998 in Monfalcone) was an Italian professional football player and coach who played as a goalkeeper.
Blason played for 11 seasons (252 games) in the Serie A for U.S. Triestina Calcio, S.S. Lazio, S.S.C. Napoli and A.S. Roma.
As a coach, Blason managed SPAL in the Serie A in the 1963âÂÂ64 season.