We found information about the following specific ships:

RMS Celtic

Description: 1901 Big Four-class ocean liner converted to armed merchant cruiser

Aliases: HMS Celtic

SS Celtic

Description: transatlantic liner built in 1872

Aliases: Celtic

USS Celtic

Description: cargo ship of the United States Navy

MV Celtic

Description: British sailing barge

Aliases: IMO 5067027

We also found the following citations which are not yet associated with specific ships: