2024–25 Dumbarton F.C. season

The 2024–25 season will be Dumbarton Football Club's first back in Scottish League One, the third tier of Scottish football, having finished fourth in Scottish League Two in 2023–24 and won the playoffs. Dumbarton will also compete in the Scottish League Cup and the Scottish Cup.

May
Following promotion to Scottish League One the club's first friendly was announced on May 21, with Sons facing Hebburn Town on July 6. On June 23 forward Marc Kelly, midfielder Luca Vata and goalkeeper Harry Broun were released. With new deals offered to Finlay Gray, Michael Ruth, Aron Lynas and Kalvin Orsi. On May 29, forward Michael Ruth who had scored 15 times the previous season, signed a new season long deal with the club. However midfielders Blair Malcolm and Callum Wilson both departed the club. The same day the Sons were drawn to face East Kilbride, Airdrieonians, Aberdeen and Queen of the South in the Scottish League Cup. On May 31 defender Matthew Shiels became the club's first signing of the summer, returning to the club for a third spell from Cove Rangers.

June
Sons made a double signing on June 1 with Cameron Clark joining from Stirling Albion and Michael Miller from Broomhill. Midfielder Finlay Gray and winger Kalvin Orsi also agreed new season-long deals. On June 7, winger Craig McGuffie became the club's fourth new addition - joining from Queen of the South. The same day, winger Ross MacLean left the club - joining Forfar Athletic for an undisclosed fee - but goalkeeper Patrick O'Neil signed a new season long deal. On June 8 defender Aron Lynas extended his stay - signing a season long deal to take him into a third campaign with the club. A third friendly of pre-season was arranged for July 2, with Sons travelling to Ayrshire to face Glenafton Athletic. Mouhamed Niang was the club's next new addition, joining on a year long deal from Cove Rangers on June 19. On June 26 defender Sean Crighton left the club to become the new head coach of Queen's Park's B team. Sons' first pre-season friendly ended in a 3-2 defeat to 2023–24 League One champions Falkirk - with Jinky Hilton scoring both goals.

July
Sons' second friendly match finished in a 4-0 victory against Glenafton Athletic. Carlo Pignatiello scored a brace with Jinky Hilton and a trialist striker also on target, with all the goals coming before half-time. The pre-season campaign was rounded off with another big away win, this time 6-1 against Hebburn Town in Newcastle. Again Pignatiello and the trialist striker got on the scoresheet, with David Wilson, Finlay Gray and Michael Ruth's brace completing the scoring. On July 9 the Dumbarton Football Stadium was renamed The Marbill Coaches Stadium in a new sponsorship deal. The first competitive game of the season finished in a 1-1 draw with East Kilbride. Kalvin Orsi getting Sons' goal, with Kilby claiming the bonus point after a 4-2 penalty shootout win. The second game in the group finished in a 2-0 defeat to Queen of the South at Palmerston Park.

First team transfers

 * From end of 2024–25 season, to last match of season 2024–25

Captains
Club captain Vice-captain Third-captain