Richarlyson Barbosa Felisbino, simply Richarlyson (born 27 December 1982), is a Brazilian former professional footballer. Mainly a defensive midfielder, he could also play as a left back or central defender. He currently works as a pundit for SporTV.

Richarlyson began playing football for Ituano, where he won the Copa São Paulo de Juniores. Ricky then moved on to Santo André, a club from the ABC region in Greater São Paulo which his father, the former footballer Lela, has also defended during his playing career. Loaned to Fortaleza and Austrian top flight club Salzburg, the midfielder drew the attention of São Paulo city giants Palmeiras. Concerns about a possible change of his nickname – from his first name, Richarlyson, to his last name, Felisbino – due to the relatively complicated pronounce and spelling, upon Palmeiras' request, made Richarlyson uneasy about joining the club, which culminated in a last-minute decision to instead move to São Paulo, one of Palmeiras' rivals.

A court battle between São Paulo and Santo André delayed his debut for the Morumbi club, even after both clubs have reached a settlement. With few opportunities in the main squad, Richarlyson languished until the hiring of the coach Muricy Ramalho. Under the command of Ramalho, Richarlyson went on to have the best phase of his career as a footballer, being an integral part of São Paulo's three Campeonato Brasileiro championships in a row. At the peak of his career, Richarlyson was called by the Brazil national team's coach Dunga for their friendly against Republic of Ireland. The former captain of the Seleção greatly praised Richarlyson's versatility. Richarlyson, despite his success for the club, was a target of constant scrutiny and abuse over allegations of homosexuality, to the point where even São Paulo supporters would sing demeaning and homophobic chants against him.

After a long spell at São Paulo, however, his form seemed to worsen. Becoming increasingly reckless, Richarlyson was sent off in important matches, such as the Copa Libertadores fixture against Universitario, and a match against Fluminense, when he called the match referee a "son of a bitch", telling him to "go fuck himself", and then ending his rant by stating that the referee "besides it all, he's [also] a faggot" in a burst of anger when leaving the field. The constant sending-offs, alongside a lack of technical quality, have forced São Paulo to negotiate the midfielder.

Atlético Mineiro, from Belo Horizonte, looking for reinforcements, signed the player, as the year's "top signing" for the team. A constant presence in the starting eleven, Ricky achieved success with the Champions of the Ice, winning the 2012 Campeonato Mineiro and making a stellar campaign in the 2012 Campeonato Brasileiro Série A, taking the Galo to the 2013 Copa Libertadores after a 13-year absence from the competition. In 2013, Richarlyson was joined by his brother, the forward Alecsandro, being the first time the two brothers have played together for the same team.

In December 2014, Richarlyson confirmed his retirement from football. The decision was made after the relegation of his latest club, Vitória, for Campeonato Brasileiro Série B. On 27 January 2015, however, he stepped back from retirement and signed for Chapecoense.

In 2022, Richarlyson came out as bisexual in an interview with the podcast Nos Armários dos Vestiários. This made him the first openly LGBT player to have played for the Brazilian men's national team and in the Campeonato Brasileiro Série A.

In 2023, he cosplayed as a ceramic water filter in the reality singing competition The Masked Singer Brasil.