Leonardo (A 5301) is a coastal research vessel owned by NATO and operated by the Italian Navy on behalf of the Centre for Maritime Research and Experimentation[3] Her homeport is La Spezia, Italy.

Leonardo was delivered to the NATO Underwater Research Centre - NURC (SACLANTCEN) on 30 April 2002 and was accorded the flag of a public vessel of the Republic of Italy under a 2001 Memorandum of Understanding between the Italian Ministry of Defence (MOD-IT) and the Supreme Allied Commander Atlantic.

On 16 November 2009, CRV Leonardo was transferred to the Italian Navy.

She holds the status of an auxiliary of the Italian Navy and is crewed by the military.

[4] Source [5] Communication systems: Media related to Italian ship Leonardo (A5301) at Wikimedia Commons