Lockheed P-2 Neptune (awalnya ditunjuk P2V sampai September 1962) adalah pesawat patroli maritim dan ASW.
Ini dikembangkan untuk Angkatan Laut Amerika Serikat oleh Lockheed untuk menggantikan Lockheed PV-1 Ventura dan PV-2 Harpoon, dan digantikan pada gilirannya dengan Lockheed P-3 Orion. Jenis ini berhasil diekspor dan beberapa angkatan bersenjata.
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Eden, Paul. "Lockheed P2V Neptune". Encyclopedia of Modern Military Aircraft. London: Amber Books, 2004. ISBN 1-904687-84-9.
Francillon, René J. Lockheed Aircraft since 1913. London: Putnam, 1982. ISBN 0-370-30329-6.
Howard, Peter J. "The Lockheed Neptune in R.A.F. Service: Part 1". Air Pictorial, Vol. 34, No. 8, August 1972, pp.284–289, 294.
Howard, Peter J. "The Lockheed Neptune in R.A.F. Service: Part 2". Air Pictorial, Vol. 34, No. 9, September 1972, pp.356–360.
Mutza, Wayne. "Army Neptunes...Over South East Asia". Air Enthusiast, Twenty-nine, November 1985 – February 1986. pp.35–42, 73–77. ISSN 0143-5450.
Scutts, Jerry. "Tractable Turtle: The Lockheed Neptune Story: Part 1". Air International, Vol. 48, No. 1, January 1995. pp.42–46. ISSN 0306-5634.
Scutts, Jerry. "Tractable Turtle: The Lockheed Neptune Story: Part 2". Air International, Vol. 48, No. 2, February 1995. pp.80–87. ISSN 0306-5634.
Swanborough, Gordon and Peter M. Bowers. United States Navy Aircraft since 1911. London: Putnam, Second edition, 1976. ISBN 0-370-10054-9.
Sullivan, Jim, P2V Neptune in action. Carrollton, Texas: Squadron/Signal Publications, 1985. ISBN 978-0-89747-160-2.
Wilson, Stewart. Combat Aircraft since 1945. Fyshwick, ACT, Australia: Aerospace Publications Pty Ltd., 2000. ISBN 1-875671-50-1.