Hartland Patrick Monahan (March 31, 1951 – December 9, 2023) was a Canadian professional ice hockey player. Monahan played 334 games in the National Hockey League (NHL).

Born in Montreal, Quebec, Monahan's father-in-law was the late Hall of Famer Bernie "Boom Boom" Geoffrion, and was the father of former Major League Baseball player Shane Monahan.

Selected by the California Golden Seals in the 1971 NHL Entry Draft, Monahan played only one game with the Golden Seals before he was traded to the New York Rangers. During the 1975 NHL Intra-League Draft, he was claimed by the Washington Capitals, where he played for two seasons. Monahan was traded to the Pittsburgh Penguins in 1977, and would be dealt again during the 1977–78 season to the Los Angeles Kings. After a season in the minors, he was claimed by the Quebec Nordiques in the 1979 NHL Expansion Draft, and was traded soon after to the St. Louis Blues, where he played until he retired following the 1980–81 NHL season.

In 334 NHL games, he scored 61 goals and 80 assists.^[1]

Hartland lived in Atlanta, Georgia, and was a manager for United Parcel Service. "Hart", as he was known by his close friends and associates, was the director of OnlineDonations.us, a team and educational fundraising company located in the Atlanta metro area.

In 2014, an ice arena in his hometown of Laval, Quebec was named in his honor after a letter writing campaign. Monahan died on December 9, 2023, at the age of 72.^[2][1]