Several nations observe or have observed a Navy Day to recognize their navy.
The Royal Australian Navy celebrates Navy Day in March.
The Day of the Croatian War Navy is celebrated on September 18 on the anniversary of Army Day.
4 December is celebrated as the Navy Day in India, to commemorate the start of Operation Trident during the Indo-Pakistani War of 1971. In a surprising, one-night attack the Indian Navy sank three vessels near the largest Pakistani port of Karachi, with no losses on its own.
In Israel, Navy Day (יום חיל הים) was celebrated on the 30th of June. At this date in the year 1948 the Port of Haifa was transferred (by default) from The Royal Navy to Israeli hands. Traditionally the Navy Day is preceded by Memorial Evening.
- Sinking the Egyptian Navy flagship Amir Farouq in 22/10/1948.
- Capturing the Egyptian frigate Ibrahim El-Awal (ex HMS Mendip on 31/10/1956).
- The overwhelming successes in Yom Kippur War, 6-24 October 1973.
As of 2009 the celebrations have been alongated for a week, which for practical reasons, are held, each year, in the month of August.
In Italy, Navy Day is December 4 and it is not a national holiday.
In The Netherlands the navy days ("vlootdagen") are mostly held on the first Friday, Saturday and Sunday of July.
In Pakistan, Navy day (Urdu: نيوى ڈے), is celebrated on September 8 in commemoration of the Indo-Pakistan war of 1965. September 8, 1965 was the day when Pakistan Navy launched its successful strategic operation against India, codename Operation Dwarka, by the 25th Destroyer Squadron.
In Russia Navy Day is a national holiday that normally takes place on the last Sunday of July. It is a legacy of the Soviet Union that introduced this holiday in June 1939; the date was chosen in connection with the Battle of Gangut.
In Romania, Navy Day is a national holiday that takes place on August 15.
In Ukraine Navy Day is a professional holidays that is celebrated on every last Sunday of July. Before 2012 it was celebrated on August 1. It was established in 1996 (then to be celebrated August 1). Since 2012 Ukraine has the same date for its Navy Day as Russia and the Soviet Union (like Russia, Ukraine is a former Soviet republic); the Soviet Union introduced its Navy Day in June 1939; the date was chosen because of a connection with the day the Battle of Gangut took place.
United Kingdom 
The term is also used in Britain to mean an open day at a dockyard such as HMNB Portsmouth, when the public can visit military ships and see air displays, roughly along the lines of an American Fleet Week. The Royal Navy traditionally celebrates Trafalgar Day on the 21st of October.
United States 
In the United States, the Navy League of the United States organized the first Navy Day in 1922, holding it on October 27 because it was the birthday of President Theodore Roosevelt, who was a naval enthusiast. Although meeting with mixed reviews the first year, in 1923 over 50 major cities participated, and the United States Navy sent a number of its ships to various port cities for the occasion. The 1945 Navy Day was an especially large celebration, with President Harry S. Truman reviewing the fleet in New York Harbor.
In 1949, Louis A. Johnson, secretary of the newly created Department of Defense, directed that the U.S. Navy's participation occur on Armed Forces Day in May, although as a civilian organization the Navy League was not affected by this directive, and continued to organize Navy Day celebrations as before. In the 1970s, the "birthday" of the Continental Navy was found to be October 13, 1775, and so CNO Admiral Elmo R. Zumwalt worked with the Navy League to define October 13 as the new date of Navy Day. However, Navy Day in the United States is still largely recognized as October 27.
See also 
- Historia de la Armada Argentina (in spanish)
- The Rise and Fall of the Soviet Navy in the Baltic 1921-1941 by Gunnar Åselius, Routledge, 2005, ISBN 0-7146-5540-6
- President signs Decree On Celebration of Some Memorable Dates and Professional Holidays, President.gov.ua (30 December 2011)
- The Global Road Warrior: 100 Country Handbook for the International Business Traveler by Joe Reif, World Trade Press, 2001, ISBN 1-885073-86-0
- Ukraine Intelligence & Security Activities and Operations Handbook, International Business Publications, USA, 2009, ISBN 0-7397-1661-1
- Navy Matters