Nélson de Jesus Silva (born 7 October 1973), better known simply as Dida (Brazilian Portuguese: ), is a Brazilian former footballer who played as a goalkeeper. After starting his senior club career in Brazil in the early 1990s with Vitória, Dida became a penalty kick-saving specialist with Cruzeiro and Corinthians. He is perhaps best remembered for his successful and often tumultuous ten-year stint with Milan from 2000 to 2010, where he established himself as one of the world's best goalkeepers due to his shot-stopping ability and command of the area; he won multiple trophies and individual awards with the club, but became equally known for his propensity for errors as well as his excellent gameplay, while he gained media attention in 2005 for being hit by a lit flare during a match against crosstown rivals Internazionale.
Dida won one Serie A title (Scudetto) and twice the UEFA Champions League with Milan, with the first of those victories coming after he saved three penalties in the 2003 final against Serie A rivals Juventus. Dida is one of four Milan keepers with 300 career appearances, and has joined other former club players for off-pitch appearances and exhibition matches. After a two-year absence from playing, he returned to Brazil in 2012, suiting up for three teams—Portuguesa, Grêmio and Internacional—in as many seasons.