the Pahlavi dynasty, which ruled Iran between 1925 and 1979.

the name of the Parthian language and speakers of it, as attested in Middle Persian and Early New Persian.

the Pahlavi writing system, as adopted to render various Middle Iranian languages, including Parthian and Middle Persian.

Also, in the classic Perso-Arabic texts, Pahlavi (Persian: پهلوی) or Fahlavi (Persian: فهلوی) may refer to:

the northwestern Iranian dialects in Western and Central Iran (e.g. Ōrāmānī, Tati and old dialects of Ray and Hamadan)