O' Donnell Park (Irish: Páirc uí Dhomhnail) is a GAA stadium in County Donegal, Ireland.

The home ground of the St Eunan's club, it is situated between the Letterkenny Regional Sports and Leisure Complex and Ballymacool Park on the outskirts of the town.

On 11 November 2008, St Eunan's confirmed that it had completed the purchase of 14.5 acres (59,000 m2) of land adjoining O'Donnell Park, which it intended to develop over the coming years into additional pitches for the club.

[4] The Sam Maguire Cup and members of Donegal's 2012 All-Ireland SFC winning team attended a world record attempt at O'Donnell Park on 29 September 2012.

[7] Having formerly been a venue for football matches played by the Donegal county team, O'Donnell Park went unused for this purpose for three decades.