Little River (New Hampshire) may refer to:
- Little River (Ammonoosuc River tributary), a tributary of the Ammonoosuc River
- Little River (Big River tributary), a tributary of the Big River
- Little River (Brentwood, New Hampshire), a tributary of the Exeter River
- Little River (Exeter, New Hampshire), another tributary of the Exeter River
- Little River (Lamprey River tributary), a tributary of the Lamprey River
- Little River (Merrimack River tributary) in New Hampshire and Massachusetts, a tributary of the Merrimack River
- Little River (New Hampshire Atlantic coast), in the Seacoast region of New Hampshire