Reginald Summerhayes (1897–1965) was a Western Australian architect, Military Cross recipient, and president of the . Summerhayes designed a range of Perth 20th century landmarks, including the Perth Dental Hospital, Lake Karrinyup Country Club, the Colonial Mutual Insurance building in St Georges Terrace, and the bell tower of Loreto Convent, Claremont – relocated to William Street in 1992.