Nasir al-Din (Arabic: or or , 'Defender of the Faith') was an honorific title, and is an Arabic masculine given name.

Nasir al-Din or variant spellings may also refer to:

Nasir ad-Din, Palestine, a former Palestinian Arab village Nasr ol Din, a village in South Khorasan Province, Iran Nasireddin (crater), on the Moon Nasreddin (crater), on Pluto's moon Charon Nasirdîn, a Yazidi holy figure

See also

ad-Din, a suffix component of some Arabic names Molla Nasraddin, an early 20th century Azerbaijani satirical periodical Nasreddin in Bukhara, a 1943 Soviet comedy film Nasrettinhoca, a town in Eskişehir Province, Turkey