Bolak or bulak may refer to:

• Bolak language, disused constructed language invented by Léon Bollack in 1899
• Bolaq, channel in Kazan, the capital city of Republic of Tatarstan, Russia
• Bulak, Sındırgı, village in Turkey
• Bulak, Surabaya, subdistrict of Surabaya, Java, Indonesia

See also

• Boulac Corniche (or Boulak Corniche)
• Boulak Bridge (aka Abou El Ela Bridge)
• Boulaq, district of Cairo, Egypt
• Bulak, item of jewellery which is part of Garhwal (northern India) traditional attire
• Geziret Boulak (lit. Boulak Island)