Flags with nautical designs

Flag of the Admiralty

Flag of Anchorage, Alaska

Flag of the Areopagus of Eastern Continental Greece (1821-1825)

Flag of the Royal Canadian Sea Cadets

Flag of the Central Commission for Navigation on the Rhine

Flag of Niigata, Niigata

Naval Jack of Romania

Ensign of the Royal Fleet Auxiliary

Flag of Saint Petersburg, Russia

Flag of the National Oceanic and Atmospheric Administration Commissioned Corps
(United States)

Guidon of the United States Coast Guard

Ensign of the United States Coast Guard

Flag of the United States Coast Guard Auxiliary

Flag of the Commandant of the United States Coast Guard

Flag of the Vice Commandant of the United States Coast Guard

Flag of a United States Coast Guard admiral

Flag of a United States Coast Guard vice admiral

Flag of a United States Coast Guard rear admiral

Flag of a United States Coast Guard rear admiral (lower half)

Flag of the United States Secretary of the Navy

Flag of the United States Under Secretary of the Navy

Flag of an Assistant Secretary of the Navy
(United States)

Flag of the United States Marine Corps

Flag of the Commandant of the Marine Corps
(United States)

Flag of the Principal Deputy Assistant Secretary for Health
(United States)

Flag of the United States Public Health Service

Flag of the Assistant Secretary for Health (United States)

Flag of the Surgeon General of the United States

Flag of the Deputy Surgeon General of the United States

Flag of a 2-star Assistant Surgeon General (United States)

Flag of a 1-star Assistant Surgeon General (United States)

Ensign of the Republic of Vietnam Navy
(1952-1975)

Ensign of the Vietnam People's Navy
(2014- )

Flag of Vinnytsia, Ukraine

Flag of Alexandria, Egypt

City and island flag of Borkum (Stadtflagge der Insel und Stadt Borkum), Germany

Flag of the Commisioners of the Northern Lighthouse Board

Flag of the Northern Lighthouse Board

Flag of Meeksi Parish (Meeksi vald), Estonia

Flag of Torgu Parish (Torgu vald), Estonia

Ensign of hydrographic and pilot vessels and lighthouses (Soviet Union)

Flag of Hörnum, Germany

Pennant of the United States Lighthouse Service
( ? - 1939)

Flag of the United States Commissioner of Lighthouses
( ? - 1939)

Flag of the United States Superintendent of Lighthouses
( ? - 1939)

Flag of Adelaide

Flag of Anchorage, Alaska

British Empire flag (1910)

Flag of Castrillón

Flag of Haifa

Flag of Kaliningrad

Flag of Lisbon

Flag of Milwaukee, Wisconsin

Flag of Port Moresby

Flag of Saint-Pierre and Miquelon

Flag of Santander

Flag of Sonsorol

Flag of Sydney

Flag of Tokelau

Flag of the United States Bureau of Navigation

Flag of the Director of the Bureau of Marine Inspection and Navigation
(United States)

Flag of Barbados (trident)

Flag of Belize (oar)

Flag of Belgrade (waves)

Flag of Benbrook, Texas (sail)

Flag of the British Indian Ocean Territory (waves)

Flag of the British Indian Ocean Territory (palm branch)

Flag of the Fédération internationale des associations vexillologiques (knot)

Flag of Franco-Terreneuviens (sails)

Ensign of Japan Coast Guard (compass)

Flag of Kisarazu, Chiba, Japan (port)

Flag of Ocean City, Maryland (waves)

Flag of Osaka, Japan (channel marker)

Flag of Portugal (armillary sphere)

Flag of San Andres and Providencia, Colombia

Flag of Tsuruga, Fukui, Japan (port and lighthouse)

Flag of Yokosuka, Kanagawa (compass)

Flag of Wakkanai, Hokkaido (helmets)

Flag of the West Indies Federation (waves)

Flag of the West Indies Federation (waves)