Filipe Luís Kasmirski (born 9 August 1985) is a Brazilian football manager and former professional footballer who played as a left back. He is the current head coach of Campeonato Brasileiro Série A club Flamengo.

A player of tireless approach also known for his tactical awareness, he spent most of his early professional career in Spain, beginning at Deportivo where he spent four seasons. In 2010 he joined Atlético Madrid, and won four trophies including the La Liga championship in 2014. He signed with Chelsea in July of that year for £15.8 million, helping them to both the Premier League and the League Cup, but lack of game time in London saw him return to Atlético a year later, winning the Europa League and Super Cup in his second spell (both in 2018). He then joined Brazilian giants Flamengo as a free agent, where he won a number of honours including the Campeonato Brasilero in 2019, 2020, and the Copa Libertadores in 2019, and 2022.

Filipe Luís made his debut for Brazil in 2009 and went on to earn over 40 caps, representing the nation at the 2013 Confederations Cup, three Copas América and the 2018 World Cup, winning the Confederations Cup as well as the 2019 Copa América. On the 30 November 2023, Filipe Luís announced his retirement from professional football.

Filipe Luís was born in Jaraguá do Sul, Santa Catarina. Coming from Figueirense FC as an attacking midfielder, he had his first taste of European football with AFC Ajax in 2004, spending one full season in the Beloften Eredivisie with the reserves. He was called up for the first team twice by manager Danny Blind for an Eredivisie match against FC Den Bosch and a UEFA Cup game against AJ Auxerre, but remained on the bench for both fixtures. Despite never playing a competitive match, he credited the Dutch club for helping him learn tactical aspects of the game, as well as aiding his development by allowing him to train with players such as Rafael van der Vaart and Wesley Sneijder.

Afterwards, Filipe Luís was registered under C.A. Rentistas, who had a partnership with his agent Juan Figer. In August 2005 he was loaned to Real Madrid, spending the entire season with its B team in Segunda División; the move was not made subsequently permanent, after high financial requests from the Uruguayan club.

Filipe Luís joined Deportivo de La Coruña in August 2006, with a buyout clause of $2.2 million. He did not have many opportunities in his first season, but his loan was extended for a further year with the same buy-out clause. In 2007–08, after first-choice Joan Capdevila's departure to Villarreal CF, he went on to establish himself as first-choice left-back.

On 10 June 2008, Filipe Luís was purchased and signed a five-year contract. During his debut season as a Deportivo player, he was the only outfield player in La Liga to appear in all 38 league games, scoring twice.

On 23 January 2010, immediately after netting the first in a league game against Athletic Bilbao (an eventual 3–1 home win), Filipe Luís sustained a horrific injury to his right fibula after opposing goalkeeper Gorka Iraizoz landed on his leg – again, he had played all matches and minutes during the campaign, and the side stood fourth in the table. Amazingly, he returned to action just four months later, appearing in the second half of the 1–0 home victory over RCD Mallorca and being involved in the play which led to Riki's goal; the Galicians would eventually finish in the tenth position.