Rollin Simmons Woodruff (July 14, 1854 – June 30, 1925) was an American politician and the 62nd governor of Connecticut.

In addition, Woodruff was president of Grace Hospital of New Haven and C. S. Mersick Company, a manufacturer and wholesaler of heavy hardware, railroad supplies, machinist supplies and other metal products.

[5][6][7] Beginning in 1896 became active in the state militia, and in 1899 he was appointed aide-de-camp to Governor George E. Lounsbury with the rank of colonel.

[11] Winning the 1906 Republican gubernatorial nomination, Woodruff became the Governor of Connecticut on January 9, 1907.

[11] Woodruff died in Guilford Center, Connecticut on June 30, 1925, exactly two weeks short of his 71st birthday.