Peter J. P. Graham (September 15, 1827 – January 18, 1877) was an Ontario farmer and political figure.
He represented Frontenac in the Legislative Assembly of Ontario as a Conservative member from 1875 to 1877.
He served as reeve for Pittsburgh and Howe Islands in 1871 and warden for Frontenac.
He was a captain for the field battery at Kingston.
This article about an Ontario Progressive Conservative Party MPP is a stub.