2000
Na Fianna were crowned Dublin Senior Football Championship winners and Leinster Senior Club Football Championship winners. They went on to an All-Ireland Senior Club Football Championship final against Crossmaglen Rangers of Armagh. Na Fianna were defeated in the final by a scoreline of 1-14 to 0-12. The match was played in Croke Park with an attendance of 31,965.
Na Fianna Senior Ladies team won the County Championship in 2009, the first time the ladies section have won a championship at senior level. The score was 1-11 Na Fianna 1-10 Naomh Marnog. The senior ladies' won their second title against Ballyboden St. Enda's in July 2011.
In 2008 Na Fianna's u14 football team won the first of three consecutive Feile Peile na nOg Division One All-Ireland titles.
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