Wawario and Wawaluigi are fan characters created as rivals to Wario and Waluigi respectively, who are themselves rivals to Mario and Luigi. Wawario is depicted as a large man similar in appearance to Wario with no eyes, a missing tooth, an orange hat and shirt and green overalls. Wawaluigi is depicted as a lanky, grotesque, ratty version of Waluigi with a blue shirt and black overalls.
A variant of Wario named Wawario first appeared online as early as June 2015 in a YouTube animation, with his more popular design appearing online as early as September 2021. Wawaluigi's most popular design was uploaded to DeviantArt by
savagewaluigi2000 in May 2017.
The characters experienced a surge in virality in late August through September 2026 on sites like X and TikTok as the subject of memes, fan art and more.