Mehmandar is a town in the Ararat Province of Armenia.
Mehmandar may also refer to:
- Mehmandar, East Azerbaijan, a village in Dizajrud-e Sharqi Rural District, Qaleh Chay District, Ajab Shir County, East Azerbaijan Province, Iran
- Mehmandar, West Azerbaijan, a village in Beygom Qaleh Rural District, in the Central District of Naqadeh County, West Azerbaijan Province, Iran