The 1913 MAFA season was the 22nd season of the Metropolitan Amateur Football Association (MAFA). The season began on 27 April and concluded on 20 September, comprising an 18-match home-and-away season, followed by a three-week finals series.
won the MAFA premiership for the fifth time, defeating by 21 points in the 1913 MJFA Grand Final.
At the time, the MAFA used the Argus finals system, which gave the club that finished first on the ladder at the end of the home-and-away season (the minor premiers) the right to challenge the winner of the finals series for the premiership.