Upin

Upin is a fictional character and one of the twin protagonists of the Malaysian animated television series Upin & Ipin. The series, produced by Les' Copaque Production, debuted in 2007 and follows the everyday adventures of the young twins living in a kampung (village) setting. Upin is typically distinguished from his twin by a small tuft of hair and clothing that helps viewers tell the brothers apart.

Characterized as curious, cheerful, and often mischievous, Upin participates in stories that emphasize family, friendship, community values, and elements of Malay culture and Islamic practice. Episodes commonly present simple moral lessons, cultural traditions, and seasonal themes such as Ramadan, making the series accessible to children while reflecting aspects of Malaysian life.

Upin, together with Ipin, has become a recognizable figure in Southeast Asian popular culture. The franchise has expanded beyond television into films, merchandise, theme park appearances, educational materials, and international broadcasts, contributing to the series' regional popularity. The character is used in promotional and educational contexts to engage young audiences.

The name Upin may also occur as a personal name or part of acronyms in unrelated contexts; in those cases the meaning and reference differ from the fictional character of the animated series.