Hastings Keith (November 22, 1915 – July 19, 2005) was a United States representative from Massachusetts.

During the Second World War, he served in the United States Army with eighteen months' overseas service in Europe.

Keith was a graduate of the Command and General Staff School, and was a colonel in the US Army Reserve.

He was a member of the Massachusetts Senate, a partner in a general insurance firm in Brockton, and was an unsuccessful candidate for the Republican nomination for Congress in 1956.

On April 19, 1974, President Nixon appointed Hastings Keith of Massachusetts as a Member of the Defense Manpower Commission.