Family name Hardai (Hardai 
) , throughout the world, is a very rare last name. The surname Hardai is habitual in Hungary, where it is a rare surname, Venezuela, where it is an extremely rare surname, and India. Predominantly, Hardai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hardai | Canada, India, Hungary, United States, South Africa |
Ali, Joseph, Jettoo, Narine, Etwaru, Itwaru, Mahabir, Mortley, Sahadeo, Boodram, Budhram, Kissoon, Persaud, Ramdial, Hussein, Seemongal, Parvatan, Dhandari, Gangaram, Gurmohamed, Indardat, Singh-Hughes, Dhanai, Deodat, Prasad, Banjoo, Ram, Lee, Khan, Paul, Devi, Deen, Dass, Twae, Yhap, Samad, Surujdeen, Sagar, Somai, Comar, Benny, Beach, Bohen, Budhu, Bipat, Kumar, Gudge, Appadu, Singh, and Ramsachal