Cubitus is a Franco-Belgian comics series, and the basis for the Wowser cartoon series appearing in the United States. Cubitus was created by the Belgian cartoonist Dupa, and features Cubitus, a large anthropomorphic dog, who lives with his owner Sémaphore. Cubitus is known as Dommel in Flanders and the Netherlands, Muppelo or Pom Pom in Finland, Teodoro in Italy, Zıpır in Turkey and Доммель in Russia. His name derives from the old anatomical name of the ulna bone, supposedly derived from the Greek kybiton (elbow).

The series tells the story of Cubitus, a good-natured large, white dog endowed with speech. He lives in a house in the suburbs with his master, Sémaphore, a retired sailor, next door to Sénéchal, a black-and-white cat who is Cubitus' nemesis.

A vast majority of the album publications collect single page gags, but a few gather collections of shorter stories or, in rare cases, one long story throughout the entire album. Some of the single gag albums or short story compilations are thematic; for instance, Cubitus illustre ses ancêtres ("Cubitus Illustrates his Ancestors") revisiting history of humankind, L'ami ne fait pas le moine ("A Friend Doesn't Make the Monk") being pastiches of fellow authors from the Tintin magazine, or Les enquêtes de l'inspecteur Cubitus ("The Investigations of Inspector Cubitus") where he is a fictional police inspector.

In 1968, Greg asked Dupa to create a character to fill an empty page in an issue of the Franco-Belgian comics magazine Tintin. Dupa sketched a large, white talking dog with a yellow tail, and gave him the name "Cubitus", naming him after the Latin anatomical name of the ulna bone.

The series' humor, art style, and universe were inspired and influenced by that of Greg's Achille Talon, with the adversarial relationship of Cubitus, Sénéchal and Sémaphore being reminiscent of Achille Talon, Hilarion Lefuneste and Alambic Dieudonné Corydon Talon. Dupa cited Pierre Perret, Marcel Pagnol, the Marx Brothers, Walt Disney, Tex Avery, the Countess of Ségur's stories and science fiction literature as his influences.

Cubitus first appeared in Tintin on April 16, 1968. The series gained immediate popularity, and began album publication in 1972. After several years of gags and album publications, it became the title strip for a magazine of its own. The first publication of Cubitus was published by Le Lombard in December 1989, though it proved short-lived, lasting only six issues. In July 1992, Jean-François Debaty wrote a special 5-page collective story celebrating the series' 1000th gag strip in Hello Bédé, collaborating with most of the other artists of the magazine. Following Dupa's death in 2000, Le Lombard published two posthumous albums, Cubitus, ça n'arrive qu'à toi... ("Cubitus, This Only Happens to You") in 2001, and Tu te la coules douce... ("You’re Having a Great Time...") in 2002.

In 2005, the series was relaunched by Pierre Aucaigne and Michel Rodrigue (who read the series during his childhood and became friends with Dupa in 1996) under the title Les Nouvelles Aventures de Cubitus ("The New Adventures of Cubitus"). Gilles "Erroc" Corre would take over writing duties beginning with volume 7, due to Aucaigne's busy work schedule for television and theatre. In 2011, Adeline Blondieau and Rodrigue created a spin-off series named Bidule, starring Cubitus' nephew of the same name. The series received mixed reviews.

In 1977, the strip was adapted into an animated short film pilot by the Belgian studio Belvision, featuring the voices of André Gevrey, Georges Pradez and Guy Pion. The backgrounds were done by Michel Leloup. The film was released on VHS by Regie Cassette Video in the 1980s as a part of Les héros du journal de Tintin ("The Heroes of Tintin"), a compilation of animated short pilots adapted from comics from the Tintin magazine by Belvision, and broadcast on Radio-Québec's Ciné-cadeau on December 29, 1984 and January 1, 1986, and Télétoon in 2000.