Nazir or Nazeer may refer to:
- Nazir (title)
- Nazir (name)
- Nazirite, in the Hebrew Bible, one who took the ascetic vow described in Numbers 6:1-21
- Nazir (Talmud), a tractate of the Talmud dealing with Nazirites
- Nazeer (horse), an Arabian stallion of "straight Egyptian" bloodlines