* "The Grunerator" was a nickname used by fans and media during his action movie heyday in the 1990s. It played on his name and his action hero persona.
* "The French Stallone" was another nickname given to him due to his muscular physique and starring roles in action films, drawing comparisons to Sylvester Stallone.
However, these nicknames aren't widely used or officially recognized. Olivier Gruner is generally known by his real name.