First Street
First Street or 1st Street may refer to:
- First Street (Hong Kong)
- 1st Street (Los Angeles)
- Anyang 1st Street
- First Street station (disambiguation), train stations of the name
- First Street, a store brand operated by the Smart & Final grocery chain
- First Street, Singapore, a road in Siglap
- Mercer Street (Manhattan), formerly called by that name
- First Street Foundation, a nonprofit organization based in Brooklyn, NY that is dedicated to making climate risk information accessible and useful for individuals, businesses and governments.