John Callum is a New Hampshire politician.
Callum graduated from Stevens High School. He served in the United States Navy from 1962 to 1966.
On November 6, 2018, Callum was elected to the New Hampshire House of Representatives where he represents the Sullivan 6 district. Callum assumed office on December 4, 2018. Callum is a Republican.
Callum resides in Unity, New Hampshire. Callum has three children and four grandchildren.