Grigoriu is a Romanian surname. Notable people with the surname include:
Grigore Grigoriu, Moldovan actor Grigore Grigoriu (footballer), Romanian football player Patrick Grigoriu, Romanian tennis player Paul Grigoriu, Romanian journalist, writer, and radio program director Simina Grigoriu, Romanian-Canadian DJ and music producer
See also
Grigoriu Ștefănescu (1836–1911), Romanian geologist, mineralogist. paleontologist