Joshua Smith is an American professional basketball player who last played for the New Orleans Pelicans of the National Basketball Association (NBA). Entering the NBA straight out of high school, Smith played nine seasons with the Atlanta Hawks before playing for the Detroit Pistons, Houston Rockets and Los Angeles Clippers between 2013 and 2016. He is sometimes referred to by his nickname "J-Smoove".

Smith was selected by the Atlanta Hawks with the 17th overall pick in the 2004 NBA draft. He won the NBA Slam Dunk Contest his rookie year during the 2005 NBA All-Star Weekend. He became only the fifth player to record three perfect scores in the same contest along with Jason Richardson, Vince Carter, Spud Webb, and Michael Jordan. Smith averaged 9.7 points, 6.2 rebounds and 1.95 blocks per game for the 2004–05 season and was selected to the NBA All-Rookie Second Team.

On March 3, 2007, Smith broke the 500 career block mark, making him the youngest player to do so in NBA history. He ended the 2006–07 season with averages of 16.4 points, 8.6 rebounds, 3.3 assists, 1.4 steals and 2.9 blocks per game. On November 17, 2007, Smith scored a career-high 38 points on the road against the Milwaukee Bucks.

On August 8, 2008, Smith signed an offer sheet with the Memphis Grizzlies, but the Hawks quickly matched the offer sheet.

On February 2, 2010, in a 99–106 loss to the Oklahoma City Thunder, Smith became the youngest player (at 24 years old) to record 1,000 career blocked shots. At season's end, he was named to the NBA All-Defensive Second Team for the first time in his career.

On July 10, 2013, Smith signed with the Detroit Pistons on a reported four-year, $54 million deal.

On February 22, 2014, Smith recorded a first half career high of 24 points as he went on to finish with a season high of 32 in a 102–113 loss to the Dallas Mavericks. He finished his first season in Detroit with averages of 16.4 points, 6.8 rebounds, 3.3 assists, 1.4 steals, and 1.4 blocks per game

On December 22, 2014, Smith was waived by the Pistons. In 28 games during the 2014–15 season, Smith averaged 13.1 points, 7.2 rebounds and 4.7 assists per game, while shooting 39.1% from the field, 24.3% from three point range and 46.8% from the free throw line. In 105 career games with the Pistons, Smith averaged 15.5 points, 6.9 rebounds and 3.7 assists per game.

On December 26, 2014, Smith signed with the Houston Rockets and went on to make his debut that night. In just under 32 minutes of action off the bench, he recorded 21 points, 8 rebounds and 3 assists in the Rockets' 117-111 overtime win over the Memphis Grizzlies. Following that game, Smith was moved into the starting lineup but struggled as the Rockets won only one of their next four games. After a blowout loss to the New Orleans Pelicans, Smith was moved back to the bench in order to help him get more comfortable with the team.

On July 16, 2015, Smith signed a one-year deal with the Los Angeles Clippers. He made his debut for the Clippers in the team's season opener against the Sacramento Kings on October 28, recording 1 point, 6 rebounds and 4 blocks off the bench in a 111–104 win.

On January 22, 2016, Smith was traded back to the Houston Rockets, along with the draft rights to Serhiy Lishchuk and cash considerations, in exchange for the draft rights to Maarty Leunen. He made his return game for the Rockets later that night, recording 2 points (on 1-of-10 shooting), 5 rebounds, 6 assists, 2 steals and 3 blocks in a 102–98 win over the Milwaukee Bucks. Two days later, in his second game back for the Rockets, Smith scored a then season-high 16 points in a 115–104 win over the Dallas Mavericks. He topped that mark on February 2, scoring 19 points as a starter in a 115–102 win over the Miami Heat.

On November 8, 2016, Smith signed a three-month, $1.5+ million contract with the Sichuan Blue Whales of the Chinese Basketball Association. In his second game for Sichuan on November 16, 2016, Smith recorded 41 points, 19 rebounds, five blocks in a loss to Guangdong Southern Tigers. In the game, he shot 7-of-18 from three-point range. He left the team in late January 2017, and in 26 games, he averaged 18.8 points, 10.6 rebounds, 3.2 assists and 2.0 blocks in 29.5 minutes per game while making only one start.

On September 28, 2017, Smith joined the Israeli team Maccabi Haifa for their preseason U.S. tour, with the aim being to play in the NBA again.

On October 28, 2017, Smith signed with the New Orleans Pelicans to help the team deal with numerous injuries. New Orleans had to use the NBA hardship exemption to sign him as he made their roster stand at 16, one over the allowed limited of 15. He appeared in three games for the Pelicans before being waived on November 10, 2017.

Smith is one of five children born to Pete and Paulette Smith. His siblings are Walter, Phebe, Kasola and Shanti. He married Alexandria Lopez on July 31, 2010. The couple have three children (two sons and one daughter).

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