Lia Pereira (born March 5, 2004) is a Canadian single skater and pair skater. With her skating partner, Trennt Michaud, she is the 2026 World bronze medallist, 2025 Four Continents bronze medallist, a three-time Grand Prix medallist (including gold at the 2023 Grand Prix de France), the 2022 CS Golden Spin of Zagreb bronze medallist, and the 2026 Canadian national champion. With Michaud, she represented Canada at the 2026 Winter Olympics.

Pereira was born on March 5, 2004, in Milton, Ontario, Canada and is of Portuguese descent.

In September 2023, she began commerce studies at the University of Guelph's Gordon S. Lang School of Business and Economics.

Pereira began learning to skate in 2012. During the 2017–18 season, while still competing at the pre-novice level as a singles skater, she formed a pairs skating partnership with James Robart-Morgan. Pereira/Robart-Morgan qualified to the 2018 Canadian Novice Championships, where they finished ninth. The partnership ended after one season, and she made her novice debut as a singles skater in the 2018–19 season. In an early international foray, she won the gold medal at Skate Milwaukee on the 2018 North American Series. Pereira was sixteenth at the 2019 Canadian Novice Championships.

In her second season as a novice, Pereira was the silver medallist at the 2020 Skate Canada Challenge in that category. She went on to win the bronze medal at the 2020 Canadian Novice Championships. With the onset of the COVID-19 pandemic, both domestic and international competitions were heavily impeded, as was skater training. Pereira moved up to the junior level, with her most notable competition being a virtual Skate Canada Challenge, where she won the bronze medal.

With the resumption of international junior competition, Pereira began her international junior debut at the Cranberry Cup International in Norwood, Massachusetts, placing fifth in the junior women's division. She was then assigned by Skate Canada to make her Junior Grand Prix debut at the 2021 JGP Russia in Krasnoyarsk. After finishing tenth overall, she called it "an amazing experience," adding "I learned a lot more about myself about how to handle the pressure of an event like this."

Pereira competed at the senior level domestically, coming tenth in her debut at the 2022 Canadian Championships. She was chosen to represent Canada at the 2022 World Junior Championships, alongside national junior champion Justine Miclette. Both she and Miclette were first sent to the International Challenge Cup, where Pereira finished sixth, including a third-place finish in the free skate. She achieved personal best scores in the short program and overall at the World Junior Championships, where she finished fourteenth overall despite being twelfth and thirteenth in the two segments.

Pereira again opened her season at the Cranberry Cup International, winning gold in the junior women's competition. Returning as well to the Junior Grand Prix, she finished sixth at the 2022 JGP France in Courchevel, setting a new personal best score in the free skate in the process. She was then assigned to make her senior international debut at the 2022 CS Finlandia Trophy, where she placed fifteenth.