Whilst no ship of the Royal Navy has borne the name HMS Saint, a number have been named after specific saints, or places that were themselves named after saints, including:
HMS St Albans
HMS St Albans Prize
HMS St Andrew
HMS St Angelo
HMS St Anne
HMS St Austell Bay
HMS St Brides Bay
HMS St Christopher
HMS St Claude
HMS St Columba
HMS St David
HMS St Dennis
HMS St Eustatia
HMS St Fermin
HMS St Fiorenzo
HMS St Florentine
HMS St George
HMS St Helena
HMS St Jacob
HMS St James
HMS St Jean d'Acre
HMS St John
HMS St John Prize
HMS St Joseph
HMS Katherine
HMS St Kitts
HMS St Lawrence
HMS St Lewis
HMS St Loe
HMS St Lucia
HMS St Martin
HMS St Mary
HMS St Matthew
HMS St Michael
HMS St Nazaire
HMS St Nicholas
HMS St Patrick
HMS St Paul
HMS St Peter
HMS St Philips Castle
HMS St Pierre
HMS St Thomas
HMS St Vincent
Other ships have used or retained foreign versions of the word for saint:
HMS San Antonio
HMS San Carlos
HMS San Damaso
HMS San Domingo
HMS Santa Dorotea
HMS San Genaro
HMS Santa Gertruyda
HMS San Giorgio
HMS San Ildefonso
HMS San Josef
HMS San Juan
HMS Santa Leocadia
HMS San Leon
HMS Santa Margarita
HMS Santa Maria
HMS San Miguel
HMS Santa Monica
HMS San Nicolas
HMS San Rafael
HMS Santa Teresa
HMS San Ysidro
