Sixsi girls, also known as "sixsi," refer to a style of wallpaper featuring a grid of six identical or similar images of girls, often with a distinctive aesthetic. The origins of sixsi girls date back to the early 2000s, when they emerged as a popular form of desktop wallpaper. Initially, these images were created by enthusiasts and shared online through forums and websites. However, as the popularity of sixsi girls grew, they began to attract the attention of professional artists, designers, and media outlets.

The term (often stylized as SIXSI or 6IXSI) refers to a specific genre of digital illustration and character design. These characters are typically youthful, fashion-forward, and exude a confident, sometimes rebellious attitude. The visual style is a hybrid of several influences: anime’s expressive eyes, Western streetwear fashion, cyberpunk neon accents, and the soft glow of Korean webtoon aesthetics.

These characters are not from a single TV show or film series but rather a —much like the "realistic anime girl" or "egirl" aesthetic. They thrive on platforms like Pinterest, TikTok, Wallpaper Access, and Zerochan.