1900
Although the club was founded in in 1949, it's roots go back much further to first Strawberry Beds (United??) in early 1900's

1930
Early club roots - Somerton Rangers (1920'3/30's??) who played where Castleknock GAA are now.

1949
St. Mochta's were founded in September 1949 when founder Barth O'Brien put a motion to the AGM of the St. Mochta's Branch of the Catholic Young Men's Society (CYMS) that a football section be formed within the branch. At the time, it was unsure exactly what type of football the club would play, considering that it could mean association football, rugby football, or gaelic football. After a vote from aspiring members, association football or soccer was chosen.[1]

In its early years, the club played its football at Somerton on the same grounds where Castleknock GAA club now play and briefly in Coolmine Lane, close to Coolmine railway station before permanently establishing themselves at Porterstown. Read more about the clubs early years here.

1961
St. Mochtas entered schoolboy football

1962
In the early 1960s the St. Mochta's Branch of the Catholic Young Men's Society (CYMS) became defunct but the club carried on as St. Mochta's

1978
FAI Junior Cup semi-final v East Wall United - beaten 1-0 - Tolka Park

2000
The club reached the quarter-final of the senior competition and faced the might of Bohemians on the famed sod of Dalymount Park. In the first round of the FAI Cup, St Mochta’s had travelled to Cork to take on Leeds AFC and went a goal down early on. However, St Mochta’s regained their composure and dominated the game thereafter with goals from Eamon Balfe and Kieran Fitzpatrick putting them ahead at half-time. In the second half Gareth Groves added the third to give St Mochta’s a conclusive and emphatic 3-1 win. This set up a home tie which saw St Mochta’s beat Evergreen from Kilkenny 3-1 to send the club into new territory.  

As if to emphasise the adventure of it all, they now faced the long haul to Donegal to play Swilly Rovers with the winners earning the right to play in the last eight of the competition. This was a hard-fought tie up in Ramelton in North Donegal but St Mochta’s came away as winners 2-1. The trip to Donegal was one of the best weekends in the clubs history. The result set up the biggest day in the club’s history on the pitch where so much of Irish soccer history has been made. A large number of supporters made the trip to Dalymount and the team acquitted itself very well against a fully professional outfit in Bohemians. Hitting the post in the first-half raised expectations briefly but at the break it remained scoreless, before Bohemians took the day with two second-half goals to bring an end to a glorious adventure. 

2013
Senior team get promoted to the Leinster Senior League 1A under the management of Brian Mc Carthy.

2014
Moore Cup Winners

2015
September - construction of 2,790 sq/m synthetic turf pitch

2017
Leinster Senior League Senior Division Winners 2016-17

2018
The Football Association of Ireland announced that St. Mochta's would be receiving funds to help fund a full-sized astroturf pitch at the club's Porterstown Road facility

2019
In July 2019, the club celebrated its 70th anniversary with a glamour friendly tie against English League One side Bristol Rovers - the tie ending in a 7-0 loss.

2020
FAI Intermediate cup winners   

2022
Shelbourne FC and St Mochta’s Football Club are delighted to announce partnership

2023
Leinster Senior League Senior Division Winners 2022-2023