Leleu Family Name and Heraldry
Here is what public records tell us about the Leleu last name. Wikidata records Leleu as a French family name. The meaning of Leleu is not given in the reference works we use for these short pages; a full report traces it from your own family's records.
French birth records list 13,179 children named Leleu between 1891 and 2000.
There is no single Leleu family crest for all bearers; the honest first step is to find out which Leleu line, if any, bore arms. Get the complete Leleu report, with a museum-style coat of arms.