John Carew (January 5, 1862 – July 19, 1927) was an Ontario lumber merchant and political figure.

He was born in Emily Township, Victoria County, Canada West, the son of John Carew, and educated in Lindsay.

He was a governor for the Ross Memorial Hospital at Lindsay and served on the board of education.

Two of Carew's daughters, Roberta and Gertrude, married, respectively, two brothers, Cecil and Leslie Frost who became prominent in the Ontario Progressive Conservative Party.

John Carew's eldest son, Frank, was lieutenant-colonel in the Canadian Forestry Corps during World War One and a very successful curler, serving as vice-skip for legendary J.D.