Sailor tattoos are traditions of tattooing among sailors, including images with symbolic meanings. These practices date back to at least the 16th century among European sailors, and since colonial times among American sailors. People participating in these traditions have included military service members in national navies, seafarers in whaling and fishing fleets, and civilian mariners on merchant ships and research vessels. Sailor tattoos have served as protective talismans in sailors' superstitions, records of important experiences, markers of identity, and means of self-expression. Common symbols include swallows, nautical stars, and anchors.