Bullseye (Lester) is a supervillain appearing in American comic books published by Marvel Comics. The character was created by Marv Wolfman and John Romita Sr. Depicted as a psychopathic assassin, Bullseye uses the opportunities afforded by his line of work to exercise his homicidal tendencies and to work out his own personal vendetta against Daredevil. He is also an enemy of the Punisher. Bullseye possesses the innate and preternatural ability to use almost any object as a lethal projectile, be it weapons like shuriken and sai or seemingly harmless objects like playing cards and pencils. His marksmanship is uncanny, at a nearly supernatural level. The alternate continuities of Daredevil Noir, PunisherMAX, and Ultimate Marvel respectively feature the original Bullseye incarnations Eliza, Shelton Pendergrass, and Benjamin "Dex" Poindexter.

Bullseye has been adapted into various forms of media relating to Daredevil, with live-action portrayals including Colin Farrell in the film Daredevil (2003), Wilson Bethel as Poindexter in the third season of the Marvel Cinematic Universe television series Daredevil (2018) and Daredevil: Born Again (2025–present), and Curtis Small in the MCU film Deadpool & Wolverine (2024).

The character's first appearance is in Daredevil #131 (March 1976). Although created by writer Marv Wolfman and artist John Romita Sr., the book features art by Bob Brown and Klaus Janson.

Bullseye's real name and origins are unknown. He uses the name "Benjamin Poindexter" on several occasions, first mentioned in Daredevil #159 (1979) where he goes by the name "Mr. Poindexter," which he later claims is "just one of the many names he used" (Daredevil #181, 1982). However, there are also instances where his name is given as “Lester". The miniseries Bullseye: Greatest Hits (2004) developed the character's backstory, but also revealed that some or all of it has been fabricated, probably by Bullseye himself. In this series, Bullseye's name was Leonard and his brother’s was Lester or, initially, Nate.

Following "Civil War", Warren Ellis took over writing Thunderbolts and Bullseye became one of the core members of the new team line-up.

In the Secret Invasion aftermath storyline Dark Reign, Bullseye becomes a member of the Dark Avengers under the alias Hawkeye and features in a five-issue limited series Dark Reign: Hawkeye, written by Andy Diggle, with art by Tom Raney. As a member of the Dark Avengers, he has a major role in the crossover Dark Avengers/Uncanny X-Men: Utopia, written by Matt Fraction. He appeared as a regular character in Dark Avengers #1-16 (March 2009-June 2010).

Bullseye is killed by Daredevil in Shadowland #1, but is later confirmed alive in Daredevil vol. 3 #26.

Bullseye grew up in The Bronx, New York City, New York, where he lived with his brother and their abusive father. He became an expert shot by playing with his brother's rifles. When he was 10 years old, his brother tried to kill their father by setting fire to their home; shortly thereafter, Bullseye was placed in a foster home. In high school, he became a baseball player. An extremely talented pitcher, he was offered a college athletic scholarship, but opted to enter the minor leagues. After three games, he was called up to start a sold-out Major League game. He had surrendered no hits, and in the bottom of the ninth with two outs, he became bored and asked the coach pull him from the game. The coach insisted that he finish the game. After the opposing team's batter mocked him as a coward, Bullseye threw the ball at his head, killing him. As the ball struck, he said, "Bullseye". He was barred from professional baseball and convicted of manslaughter.