Sir James Cotter, 3rd Baronet

Sir James Laurence Cotter, 3rd Baronet of Rockforest (1782 – 31 December 1834) was an Anglo-Irish politician and baronet.

Cotter was the son of Sir James Cotter, 2nd Baronet and Isabella Hingston, and the grandson of Sir James Cotter. In the 1812 United Kingdom general election, he was elected as the Member of Parliament for Mallow, and he held the seat until 1818. On 9 February 1829, he succeeded to his father's baronetcy.

He married Helena Tryndall Lombard, daughter of Major James Lombard and Ann Becher, on 1 January 1820. Cotter was succeeded by his son, also called James, the 4th Baronet.