D45 may refer to:
*
D45 road (Croatia)
D45 connects the A3 (Croatia), A3 motorway Kutina interchange to Kutina, Garešnica and the D5 road (Croatia), D5 state road. The road forms two junctions to the D26 road (Croatia), D26 state road, one in Garešnica, where D26 branches off to Da ...
*
Dresden 45
Dresden 45 was a hardcore punk and crossover thrash band from Houston, Texas, also known as D'45 and variantly, D45. They were one of the first hardcore bands to implement a guitar-driven heavy metal sound into their music. Like other Houston ban ...
, an American band
* , a ''Danae''-class light cruiser of the Royal Navy
*
Martin D-45
The Martin D-45 is a steel-string acoustic guitar model made by C. F. Martin & Company. The model was manufactured from 1933 to 1942, and in a second production series since 1968. Martin originally made the guitar's sides and backs of Brazili ...
, an acoustic guitar
*
Polycythemia vera
*
Semi-Slav Defense
The Semi-Slav Defense is a variation of the Queen's Gambit chess opening defined by the position reached after the moves:
:1. d4 d5
:2. c4 c6
:3. Nf3 Nf6
:4. Nc3 e6
The position may readily be reached by a number of different . Black's s ...
, a chess opening
{{Letter-NumberCombDisambig