Meaning and name origin
Alexei \a-lexei\ as a boy's name is of Greek origin, and the meaning of Alexei is "man's defender, warrior". Alexei is a variant of Alexander (Greek): from the Latin form of the Greek name Alexandros. Also a variant of Alexis (Greek): often used as a short form of Alexander, though it is from Alexius, the Latin spelling of the Greek Alexios. See also Olexei.
Alexei is not a popular first name for males and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Alexei and its variant forms. Popular variation forms ranked in the Top 1000/100 are Alexander (#8) and Alexis (#302). (2014 statistics).
A suggested similar baby name is Alex. This name tends to be more commonly used than Alexei.