St. Malachy's GAC Castledawson (An Séan Mhullach) is a Gaelic Athletic Club from Castledawson, County Londonderry, Northern Ireland. The club is a member of the Derry GAA and currently cater for both Gaelic football and Camogie.
Underage teams up to U-12's play in South Derry league and championships, from U-14 upwards teams compete in All-Derry competitions.
St. Malachy's GAC was set up largely thanks to Paddy Graham from the townland
of Tamnadace outside the village. The Graham Cup, a reserve competition for South Derry clubs is named in his honour.
Although having small numbers it is a credit to this small club for being able to compete in the senoir league in Derry for so long. With a lot of young stars coming through will hopefully be able to fight against the odds and remain at the top table of Derry football.
Castledawson fields Gaelic football teams at U10, U12, U14, U16, Minor
, Reserve, and Senior
Well known players
- Matt Sonny McCann - Former Derry and Ulster footballer.
- Dermot Heaney - 1993 All-Ireland Championship winning Derry footballer.
- Seamus Heaney - Nobel Prize winning poet who played football with Castledawson until Minor level.
- Adrian Heaney - Former Derry Minor, Under 21 and Senior Player who was the Senior team captain when he died at the young age of 26 in January 2005 after a short illness
Castledawson fields camogie teams at U10, U12, U14, U16, Minor
, and Senior
- Derry Junior Football Championship: 1
- McGlinchey Cup: 1
- Tommy O'Neill Cup: 1
- South Derry Minor 'B' Football Championship: 1
- South Derry U-16 'B' Football Championship: 1
- South Derry U-16 'B' Football League: 2
- South Derry U-14 'B' Football Championship: 1
- South Derry U-14 'B' Football League: 1
- Derry Premier Camogie Championship: 1
Note: The above lists may be incomplete. Please add any other honours you know of.