Throughout the world, دينيس (Dennis 
, Denis , Denys ) is a prevalent masculine given name. The first name دينيس is habitual in France, where it is a common male name, Nicaragua, and Croatia (explore the name in all countries). In absolute terms, it is the most numerous in the United States, France, and Philippines. Much less frequently, دينيس is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Dennis, Denys, Denis | Kenya, Philippines, Nigeria, United States, France |
| دينيس | Yemen, Palestinian Territory, Algeria |
Dainis, Dainys, Denez, Deni, Denisa, Denise, Deniss, Denisse, Deniz, Dennys, Denís, Dienes, Dinis, Dionigi, Dionisio, Dionisios, Dionisius, Dionizij, Dionizy, Dionyses, Dionysios, Dionysis, Dionysius, Dionysus, Dionís, Dynys, Dzianis, Dzyanis, Διονύσης, Διονύσιος, Дени, Дениз, Дениза, Денис, Дениса, Денни, Деннис, Денька, Деня, Дені, Деніс, Дзяніс, Диня, Дионизий, Дионис, Дионисий, Дионисио, Дионисиос, Дионисиус, Дэн,
دينيس is also a prevalent name for the fictitious and mythical characters: Dennis Creevey , the character from Harry Potter, Harry Potter and the Order of the Phoenix; Dennis "Cutty" Wise , the character from The Wire; Dennis Monroe Parker , character in Alien; Skorpio and Dennis Ryland , character in The 4400, and in many other works.