There have been several ships called Nova Scotia :
HMS Nova Scotia, British Royal Navy ships
HMS Nova Scotia (1812)
RMS Nova Scotia, British Royal Mail Ships
RMS Nova Scotia (1926), a Furness Withy British Royal Mail Ship
RMS Nova Scotia (1947), replacement for 1926-built RMS Nova Scotia
MV Nova Scotia, motor vessel named "Nova Scotia", replacement for 1947-built RMS Nova Scotia