The 1948–49 season was the 48th year of competitive football played by Southampton F.C., the club's 22nd season as members of the Football League, and their 20th competing in the Second Division. The Saints finished the campaign in third place in the league table, having gained 55 from a possible 84 points with 23 wins, nine draws and ten losses. The club also competed in the FA Cup, but lost their only fixture in the third round against fellow Second Division side Sheffield Wednesday.