Simeon Eben Baldwin (February 5, 1840 - January 30, 1927) was a governor of Connecticut.

He was born in New Haven, Connecticut, and became a lawyer active in Democratic Party politics. He was justice of Connecticut state supreme court, 1897-1907, chief justice of the Connecticut Supreme Court, 1907-10, Governor of Connecticut, 1911-15 and a candidate for United States Senator from Connecticut, 1914. He is interred at Grove Street Cemetery.

He was the son of Roger Sherman Baldwin.