Robert Watson Grimmer

Robert Watson Grimmer (October 25, 1866 – November 4, 1948) was a merchant and politician from New Brunswick, Canada. He represented Charlotte County in the Legislative Assembly of New Brunswick from 1915 to 1920 and Charlotte in the House of Commons of Canada from 1921 to 1930 as a Conservative member.

He was born in Saint Stephen, New Brunswick, the son of William Wey Grimmer and Margaret Wilson. In 1859, he married Mary B. Harrison. Grimmer served on the town council for Saint Stephen and was mayor from 1908 to 1909. He also served on the St. Stephen Water Commission and as a school trustee. Grimmer was a Mason and a member of the Knights of Pythias.