The 2009 NBA Draft was held on June 25, 2009, the WaMu Theatre at Madison Square Garden in New York City, New York. In this draft, National Basketball Association (NBA) teams took turns selecting amateur U.S. college basketball players and other eligible players, including international players.

The Los Angeles Clippers, who won the draft lottery on May 19, 2009, used their first overall draft pick to draft Blake Griffin from University of Oklahoma. However, he missed the entire 2009–10 season due to surgery on his broken left kneecap, which he injured during the pre-season.Tanzanian-born Hasheem Thabeet from University of Connecticut was drafted second overall by the Memphis Grizzlies. Thabeet became the first player born in Tanzania to be drafted by an NBA team. The Sacramento Kings drafted Tyreke Evans fourth overall and was named 2009–10 NBA Rookie of the Year, after he became the fourth NBA player in history to average at least 20 points, 5 rebounds and 5 assists in his rookie season, joining the elite club of Oscar Robertson (1960), Michael Jordan (1984) and LeBron James (2003). Spanish teenager Ricky Rubio was drafted fifth overall by the Minnesota Timberwolves. Rubio became the fifth highest international player who never played U.S. college basketball to be drafted in the NBA, tied with Nikoloz Tskitishvili (5th in 2002), and behind Yao Ming (1st in 2002), Andrea Bargnani (1st in 2006), Darko Miličić (2nd in 2003) and Pau Gasol (3rd in 2001). 23rd pick Omri Casspi became the first Israeli player to be drafted in the first round, and later he became the first Israeli to play in the NBA.

The NBA Draft is an annual event in which the thirty teams from the National Basketball Association (NBA) can draft players who are eligible and wish to join the league. These players are usually amateur U.S. college basketball players, but international players are also eligible to be drafted. College players who have finished their four-year college eligibility are automatically eligible for selection, while the underclassmen have to declare their eligibility and give up their remaining college eligibility. International players who are at least 22 years old are automatically eligible for selection, while the players younger than 22 have to declare their eligibility. Players who are not automatically eligible but have declared their eligibility are often called "early-entrants" or "early-entry candidates". The Draft usually takes place at the end of June, during the NBA off-season. The Draft consists of two rounds with a total of sixty players to be selected.

In the past, high school players were also eligible to be selected. However, starting in the 2006 Draft, high school players were not eligible to enter the draft directly after graduating high school. The rules now state that high school players will gain eligibility for draft selection one year after their high school graduation and they must also be at least 19 years old as of the end of the calendar year of the draft. Contrary to popular belief, they do not necessarily have to have at least one year of college basketball (as some players have chosen to use that year to play professionally in Europe for example).

Jalen Anthony Rose (born January 30, 1973) is a retired American professional basketball player and current sports analyst for the television network ESPN. In college, he was a member of the University of Michigan Wolverines' "Fab Five" (along with Chris Webber, Juwan Howard, Jimmy King and Ray Jackson) that reached the 1992 and 1993 NCAA Men's Division I Basketball Championship games as both Freshmen and Sophomores. Rose played in the NBA for six teams, most notably alongside Reggie Miller on the Indiana Pacers teams which made three consecutive Eastern Conference finals, including the 2000 NBA Finals.

As a star at Southwestern High School in Detroit, Rose obtained a high profile and can even be seen at a high school All-American camp in the documentary film, Hoop Dreams. Rose attended the University of Michigan where the Wolverines reached two NCAA Finals games in 1992 and 1993, finishing as national runners up both times. Rose was a part of Wolverines coach Steve Fisher's legendary 1991 recruiting class, dubbed the "Fab Five". He led the Fab Five in scoring his freshman year, averaging 19 points per game, and set the school freshman scoring record with 597 total points. Aside from being the most outspoken of the Fab Five, Rose was also their point guard and leader. During his career, he racked up over 1700 points, 400 rebounds, 400 assists, and 100 steals. Of the players called before the grand jury (Robert Traylor, Webber, Rose, Maurice Taylor, and Louis Bullock) in the University of Michigan basketball scandal, he was the only one not listed as having received large amounts of money.

James Edward Harden, Jr. (born August 26, 1989) is an American professional basketball player who plays for the Oklahoma City Thunder of the National Basketball Association (NBA). He played college basketball for the Arizona State Sun Devils, where he was named a consensus All-American and Pac-10 Player of the Year in 2009. Harden was selected third overall by the Thunder in the 2009 NBA Draft, and was named NBA Sixth Man of the Year with the team in 2012. The shooting guard is well-known for his conspicuous beard.

Harden attended Artesia High School in Lakewood, California. In his sophomore year, he averaged 13.2 points as Artesia went 28–5. He improved his stats to 18.8 points, 7.7 boards and 3.5 assists in his junior season and led Artesia to the California state title and a 33–1 record. Artesia won the state title in Harden's final year too by going 33–2. Harden had similar stats as during the previous season: 18.8 points, 7.9 rebounds and 3.9 assists. He was named a Parade and McDonald's All-American.

Earl Rashad Clark (born January 17, 1988) is an American professional basketball player. Clark played collegiate basketball for the University of Louisville men's basketball team and was drafted 14th overall by the Phoenix Suns in the 2009 NBA Draft.

Clark grew up in Plainfield, New Jersey and attended Rahway High School in Rahway, New Jersey. There, he scored 1,245 career points. As a senior, he averaged 25.2 points, 13.2 rebounds and 5 assists per game. He was a 2006 McDonald's All-American.

As a freshman for the Louisville Cardinals, along with Derrick Caracter, Edgar Sosa, and Jerry Smith, the young group struggled early in the 2006–07 season. The team went on to win 8 out of its last 10 games, earning a bid to the NCAA Tournament.

In the first game of the 2007 NCAA Tournament, he scored 12 points, 4 rebounds and 4 steals against Stanford.

Clark decided not to put his name in the 2008 NBA Draft and to return to the University of Louisville for the 2008-2009 season.

In the 2008-2009 season, Clark, along with future NBA player Terrence Williams, led Louisville to the Big East Title, as well as a #1 ranking, the first ever in the University of Louisville's history.