Other
- Nash, a Linux interpreter (not a shell) for linuxrc images
- Nash, another name for the "Arrowhead" star, γ2, in Sagittarius, derived from Arabic النصل an-naşl "the arrowhead"
- Nash, a nickname for Sodium hydrosulfide (formula: NaSH)
- NASH, a Spanish boy band, later renamed D'NASH, that represented Spain in the Eurovision Song Contest 2007
- North Allegheny Senior High (NASH), a high school in Wexford, Pennsylvania, United States
- Nash (tugboat)
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