D44, D-44 or D.44 may refer to:
*
85 mm divisional gun D-44
The 85-mm divisional gun D-44 (russian: 85-мм дивизионная пушка Д-44) was a Soviet divisional 85-mm calibre field artillery gun used in the last action of World War II. It was designed as the replacement for the 76 mm divisiona ...
, a Soviet artillery gun
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Aero D-44, a German military transport aircraft
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D44 road (Croatia)
* , a ''Danae''-class cruiser of the Royal Navy
* , a I-class destroyer of the Royal Navy
* , a Battle-class destroyer of the Royal Navy
*
Digital Forty Four
Digital Forty Four was a Sydney-only trial datacasting service that was licensed by the Australian Broadcasting Authority (now the Australian Communications and Media Authority) beginning on 17 March 2004 for an initial three-year run until late ...
, an Australian datacasting service
*
Semi-Slav Defence, a chess opening
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