1969–70 Dumbarton F.C. season

Although the league campaign saw a great improvement from the previous season, the inability to take points from the 'front-runners' meant that Dumbarton were never really in with a chance of snatching a promotion place and finished in 7th place, with 40 points, 16 behind champions Falkirk.

The League Cup however, brought some cheer, with four wins and a draw from the six sectional games, Dumbarton qualified to meet Brechin City in a play off.

A good home win after a tight draw at Brechin meant a quarter final against Ayr United, who were however to prove too strong.

In the Scottish Cup, Dumbarton had an easy time beating non-league Gala Fairydean in the second preliminary round, but it was a huge disappointment to lose in the first round proper to Division 2 strugglers Forfar Athletic at home.

Locally, in the Stirlingshire Cup, Dumbarton reached their first final for five years, before losing out to Falkirk.