Paul Peter Mostoway (October 16, 1929 – March 19, 2012^[1]) was an educator and political figure in Saskatchewan. He represented Hanley from 1971 to 1975 and Saskatoon Centre from 1975 to 1982 in the Legislative Assembly of Saskatchewan as a New Democratic Party (NDP) member.

He was born in Mayfair, Saskatchewan and was educated in Saskatoon. Mostoway worked as a sailor on the Great Lakes, as a construction worker in Kemano, British Columbia and as an auto worker for General Motors plant in Oshawa, Ontario. He then attended the University of Saskatchewan, receiving a BEd. From 1956 to 1988, Mostoway taught school in Kandahar, Allan and Clavet.^[1] He also served on Saskatoon city council from 1988 to 1994,^[2] was a member of the Saskatoon Catholic School Board and was a member of the senate for the University of Saskatchewan.^[1] He was defeated by Jack Sandberg when he ran for reelection to the provincial assembly in 1982.^[3] Mostoway died in Saskatoon at the age of 82.^[1]