Konstantopoulos (el|Κωνσταντόπουλος) is a Greek surname, with the feminine form being Konstantopoulou (Greek, Modern (1453-);: Κωνσταντοπούλου). The surname is sometimes transliterated with a leading "C". Notable people with the surname include:
Aikaterini Konstantopoulou, the original name of the Greek actress Katina Paxinou (1900–1973)
