Koltai is a Hungarian surname. It is derived from the word "koltó," which means "foal" or "young horse." It can be occupational, referring to someone who worked with horses, or a nickname for someone who resembled a foal in some way. The name is relatively common in Hungary. Notable people with the surname Koltai include:
- Róbert Koltai: A Hungarian actor, film director, and screenwriter. He is known for his comedic roles and directing films such as "Sose halunk meg" ("We Never Die").
- Lajos Koltai: A Hungarian cinematographer, known for his work on films such as "Malèna," "The Legend of 1900," and "Being Julia." He has been nominated for an Academy Award for Best Cinematography.