Milipili is a youth subculture and fashion aesthetic that emerged in Argentina in the early 2020s and gained viral popularity on platforms like TikTok. The name is a portmanteau of "Milagros" and "Pilar," two personal names common among the Argentine upper class, and the term is used to describe a style and social group associated with affluent, trend-conscious young women.

The aesthetic is a maximalist and often revealing reinterpretation of late 1990s and early 2000s fashion, blending elements of Y2K and McBling . The uniform is characterized by garments like low-rise pants, crop tops, ripped or distressed clothing, and platform boots. While initially a pejorative term for conceited, wealthy youth, "Milipili" has evolved to primarily describe this specific fashion trend, which is heavily shown at music festivals like Lollapalooza Argentina.

Some common elements of Milipili fashion are: