Gregor \g-re-gor\ as a boy's name is a variant of Gregory (Greek), and the meaning of Gregor is "watchful, vigilant".

The baby name Gregor sounds like Grygor, Grigor, Gregori, Gregoor and Greger. Other similar baby names are Gregos, Gregorio, Grigori, Gregoire, Greggory, Gregg, Greg and Greer.