- Akatsuki (spacecraft) or Dawn, a Japanese spacecraft launched in 2010 to Venus
- Dawn (spacecraft), a space orbiter launched in 2007 to Vesta and Ceres
- USS Dawn (1857), a steamer
- USS Dawn (SP-26), a repair boat in commission from 1917 to 1918
- USS Dawn (SP-37), a proposed private yawl ordered delivered to the Navy in 1917 but never commissioned into Navy service
- USS Dawn (IX-186), a tanker in commission from 1944 to 1946
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