Moxxi, full name Mad Moxxi, is a non-playable character from the Borderlands video game series.

Moxxi is famous for her charm, smarts, and intriguing history. She's easily spotted with her flashy clothes and cunning grin. Known as a bar owner, weapon maker, and sometimes quest giver. Behind her seductive demeanor lies a shrewd business mind and a knack for survival in the dangerous world of Pandora. Moxxi's establishments, such as the Underdome and the Up Over Bar, serve as hubs for adventurers and mercenaries seeking respite from their perilous journeys.

Despite her affiliation with questionable characters and morally ambiguous dealings, Moxxi often demonstrates a softer side, showing empathy and compassion for those in need. She's a complex blend of sensuality and savvy, able to manipulate situations to her advantage while also fostering genuine connections with those around her.

Moxxi's exact origins remain shrouded in mystery, adding to her allure and leaving players intrigued by her enigmatic past. Throughout the Borderlands series, she remains a central figure, leaving an indelible mark on the ever-expanding universe with her wit, charm, and undeniable charisma.

Moxxi enjoys combat and fighting, making it known that she was a strong and talented fighter in her earlier years. She has been married at least three different times and has a couple of children with whom she proves to be a loving and protective mother. However, her lovers have been both male and female.

In the Mr. Torgue's Campaign of Carnage downloadable content, a character named Motor Momma is shown. It is revealed that she was one of the many lovers dropping a lot of innuendos about herself and Motor Momma. In one moment of dialogue, Moxxi said, “Motor Momma loves vehicles. That's what attracted her to me in the first place. Oh, did I mention we dated for a while?”

Moxxi, along with Tiny Tina, Axton, Mr. Torgue, and Zane Flynt make up the bi cast of the Borderlands franchise.