Ana Carolina Vieira was born on November 19, 1993, in Brazil — the youngest child in the Vieira family and the origin of her enduring nickname, "Baby." Growing up alongside MMA fighter Rodolfo Vieira, she absorbed the rhythms of competitive grappling from an early age. It was watching Rodolfo compete, however, that delivered the decisive spark. Those ringside experiences drew her back to jiu-jitsu as a teenager, transforming a passing interest into the foundation of an elite athletic career.

Her first structured training came under Gabriel Marinho at ProCombat, where she developed the technical base that would eventually carry her to the top of the sport. Rodolfo's example — his dedication, his discipline, his success — created an environment in which pursuing jiu-jitsu seriously felt not only possible but natural. That formative influence became one of the defining threads of her development as a competitor.

Vieira built a strong technical foundation under Gabriel Marinho at ProCombat, but it was a single tournament performance that announced her potential to a wider audience. At the 2012 Abu Dhabi World Pro trials in Gramado, Brazil, she won four consecutive matches against high-level opponents and advanced to the final. The result generated considerable attention and prompted a moment of reckoning: jiu-jitsu, she recognized, could be a profession.

To pursue that path seriously, she transitioned to GF Team, training under head instructor Julio Cesar Pereira at the academy's headquarters. The move proved transformative. Vieira became a central figure in GF Team's competition program and built one of the most decorated colored belt careers in modern BJJ history. She claimed IBJJF World Championship gold at blue belt in both 2012 and 2013 — including a weight and absolute double in the latter year — then added a purple belt world title in 2014 and a brown belt world title in 2016. That brown belt campaign, defined by consistency and dominance, led Julio Cesar Pereira to promote her to black belt in June 2016, setting the stage for everything that followed.

Vieira's transition to black belt competition produced no adjustment period. In 2017, one year after her promotion, she captured her first IBJJF Black Belt World Championship — a statement result that made her intentions clear from the moment she arrived. In 2018, she accomplished something genuinely rare: claiming IBJJF World Championship gold in both the gi and no-gi formats within the same competitive season, a display of versatility that few competitors at any weight class have matched.

World Championship gold medals continued to accumulate in 2019, 2021, and 2022, placing her among the most decorated champions of her generation. She maintained a persistent presence in the absolute division as well, reaching the podium at Worlds in 2018, 2022, and 2023. Beyond her primary weight class, Vieira moved up to medium-heavy (-74kg) and claimed IBJJF Pan American Championship gold in 2021 and again in 2023, confirming that her dominance extended across divisions, not just within a single bracket.

In August 2025, Vieira publicly announced that she would not compete at IBJJF Worlds again — a deliberate departure from the circuit that had defined so much of her black belt career.

Vieira's IBJJF record had long established her among the elite of her era, but her performance at ADCC 2024 World Championship added a dimension to her legacy that transcended any single ruleset. Competing in the -65kg division in her first ADCC finals appearance, she defeated 17-year-old prodigy Helena Crevar in overtime by a score of 5-0, claiming the ADCC World title.

The victory carried historical weight that extended well beyond the podium. Vieira's wife, Luanna Alzuguir, had won the ADCC World Championship in 2009. With Vieira's 2024 title, the two became the first married couple in the history of grappling to both hold ADCC World Championship titles — a distinction that reflects the extraordinary depth of talent within their partnership. The ADCC gold also represented a defining crossover achievement, confirming that Vieira's excellence was not confined to the gi competition circuits she had long dominated, but extended fully into the sport's most prestigious no-gi arena.

In 2018, Vieira and Luanna Alzuguir co-founded Aviv Jiu-Jitsu in Florida, channeling their combined competitive experience into a shared coaching venture. Vieira serves as co-founder and head instructor, overseeing the academy's training programs and competitive development. The gym was built around an explicit mission: to foster an inclusive training environment that welcomes practitioners of every background.

Aviv Jiu-Jitsu has become Vieira's primary professional identity beyond competition — a deliberate choice to translate championship-level knowledge into community-building. The academy's character reflects the values its founders have chosen to emphasize: technical rigor paired with a genuine culture of belonging. Having two world champions co-lead a single academy is a distinction few institutions in the sport can claim.

The relationship between Ana Carolina Vieira and Luanna Alzuguir stands as one of the most storied partnerships in contemporary jiu-jitsu. Alzuguir is a multiple-time IBJJF World Champion and the 2009 ADCC World Champion — credentials that place her among the legends of women's grappling. Together, the two athletes have merged elite competitive careers with a shared professional mission, co-founding and operating Aviv Jiu-Jitsu as an expression of both their personal and professional union.

The combined weight of their ADCC titles — Alzuguir's from 2009 and Vieira's from 2024 — is difficult to overstate. No married couple in grappling history had previously held ADCC World Championship titles, making their partnership a landmark within the sport at large. The culture of their academy reflects the values both athletes have built their careers around: high-level technique, competitive ambition, and an environment in which every practitioner belongs.