Sinbad (c. 1936 – 30 December 1951) was a mixed-breed dog that was one of two animals to be classified as non-commissioned officers by an arm of the United States military, rather than property, prior to the enactment of regulations to prohibit such (the other being Sergeant Stubby USA, WWI) after being enlisted by the creative crew of USCGC Campbell.

Sinbad spent 11 years at sea on the Campbell including combat in World War II that became widely publicized as part of the homefront campaign.

[13] Although publicity photos depicted Sinbad standing helmeted on the barrel of a large gun, he actually stayed below decks with a general quarters duty post "assigned to damage control", keeping him away from the sound of gunfire.

[5][15] After the cutter suffered severe damage, becoming disabled and without power due to flooding,[16] "essential crew" were left aboard the otherwise evacuated ship to keep it afloat as it was towed to Canada for repair, and Sinbad travelled with them.

Photo sessions and network news interviews when the Campbell was in port served the home-front morale effort and gave Sinbad nationwide recognition.

[5] As both a dog and sailor, Sinbad was not immune to causing trouble in port towns where the crew went on liberty, and was not always cooperative at public relations events.

[1][5] After spending 11 years with the Campbell's crew, mostly at sea, Sinbad was taken ashore at the Barnegat Light station in New Jersey,[5] and listed as honorably discharged from the Coast Guard on 21 September 1948,[1] and on "inactive duty".

Lacking any oversized washers, or a large engine room crew Foley dubbed "the black gang" in reference to the soot and oil of their jobs to provide one, the statue instead balances a rawhide bone.

The public affairs officer for Campbell, Ensign John Jeffares, wrote in 2011 in reference to their statue deemed in part to protect the ship vis-à-vis the belief attributed to Captain Hirschfield that "here on board we have our own special tradition.