| Kalvaitis | |
|---|---|
| Lithuanian surname | |
| m.: | Kalvaitis |
| f.: (unmarried) | Kalvaitytė |
| f.: (married) | Kalvaitienė |
Kalvaitis (Kalvaitytė, Kalvaitienė) is a Lithuanian-language surname derived from the word kalvis, "blacksmith". It was Polonized as Kailoweit, Kallwejt, Kalwajt, Kalwajtys, Kałwajtys, Kalweit, Kallweit, Kalwejt. Notable people with this surname include: