John Hill Belcher Mason (October 28, 1858 – January 12, 1919) was an American stage actor popular during the decades surrounding the start of the twentieth century.

During his first season he appeared opposite notable actors of the day including Lawrence Barrett, Mary Anderson, Lotta Crabtree, James K. Emmet, J. C. Williamson, Mme.

The following year he began a 12-year association with the Boston Museum working with William Warren, Dion Boucicault, Lester Wallack and other well-known actors of that time.

After a brief foray into vaudeville, Mason returned to the legitimate theater to revive his role in The Idler, and later at the Garrick Theatre playing Col. Moberly in Augustus Thomas' Alabama.

This was compounded by financial set backs due to the failure of the Mason-Manola Company and a mental breakdown she suffered in 1894 that was most likely fueled by alcohol and opium.

A decade earlier, Mason and his brother Lowell served a brief time behind bars in a dustup over an unpaid bill with a former business partner.