Kalvaitis
Kalvaitis 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:
- , Lithuanian ballet dancer and teacher
- one of the first Lithuanian professional musicians and composers
- Paulina Radziulytė-Kalvaitienė, Lithuanian athlete and basketball player
- Paulina Kalvaitytė, a founder of the Lithuanian Women's Council