Curry was selected with the seventh overall pick in the 2009 NBA draft by the Golden State Warriors. His rookie contract was worth $12.7 million over four years. In his first career game, he scored 14 points and distributed 7 assists. With final season averages of 17.5 points, 5.9 assists, and 1.9 steals per game, he finished second in NBA Rookie of the Year voting to Tyreke Evans, and was named to the NBA All-Rookie First Team. At the 2011 NBA All-Star Weekend, Curry won the NBA All-Star Weekend Skills Challenge. He finished the season with averages of 18.6 points, 5.8 assists, and 1.5 steals per game and shot a franchise- and league-best 93.4 percent from the free throw line. He was also the recipient of the NBA Sportsmanship Award.
In May 2011, Curry had surgery on his right ankle to repair torn ligaments that were caused by multiple sprains from the season before. The ankle healed in time for the start of the 2011 - 12 campaign, but he sprained it again during the preseason and on January 4 in a game against the San Antonio Spurs.On February 22, he strained a tendon in his right foot in a game against the Phoenix Suns. In April, he had another surgery. In total, Curry appeared in only 26 regular season games and his scoring average dipped to 14.7 points per game.
Prior to the start of the 2012-13 season, Curry agreed to a four-year, $44 million rookie scale contract extension with the Warriors. At the time, many basketball writers considered the move risky for Golden State because of Curry's injury history. Over the course of the year, Curry and backcourt teammate Klay Thompson gained a reputation for their perimeter scoring, earning them the nickname "The Splash Brothers". On February 27, Curry scored a career-high 54 points in a game against the New York Knicks, setting a franchise record for three-pointers made in a game with 11 and falling just one shy of tying the NBA record. In the final game of the season, he set a new league record for three-pointers made in a single season. His final averages were 22.9 points and 6.9 assists per game. The Warriors finished the year with 47 wins, earning them the sixth seed in the Western Conference and a matchup with the Denver Nuggets in the first round of the playoffs. Golden State defeated the Nuggets in six games to advance to the second round, where Curry scored 44 points in a Game 1 loss to the Spurs. The Warriors eventually lost the series in six games.
In December of the 2013-14 season, Curry eclipsed Jason Richardson as the franchise's leader in career three-pointers. In February, he made his first All-Star appearance, starting for the West. Behind averages of 24 points and 8.5 assists per game, he was selected to his first All-NBA Team. Seeded sixth for the second consecutive year, the Warriors drew the Los Angeles Clippers to begin the postseason. In Game 4, Curry scored 33 points, including a then playoff career-high seven three-pointers, in a winning effort. Golden State went on to lose the series in seven games.
Prior to the start of the 2014-15 season, the Warriors hired former NBA player and general manager Steve Kerr as their new head coach. Kerr implemented significant changes to Golden State's schemes, including playing at a faster pace and giving Curry more freedom to shoot, helping the team evolve into a title contender. On February 4, Curry scored a season-high 51 points in a win over the Dallas Mavericks. He was the leading vote-getter for the All-Star Game and won the Three-Point Contest on All-Star Saturday night. On April 9, he broke his own league record for three-pointers made in a season during a game against the Portland Trail Blazers. The Warriors finished the year with 67 wins and Curry was voted the NBA Most Valuable Player after posting averages of 23.8 points, 7.7 assists and 2 steals per game. Over the course of the season, he sat out 17 fourth quarters due to Golden State's wide margins of victory.
In Game 5 of the Conference Semifinals against the Memphis Grizzlies, Curry became the first player in league history to register six three-pointers and six steals in a game. In Game 6, he made a playoff career-high eight three-pointers en route to a series-clinching victory. In Game 3 of the Conference Finals against the Houston Rockets, he broke the NBA record for most three-pointers made in a single postseason. The Warriors went on to defeat the Rockets to earn a Finals matchup with the Cleveland Cavaliers, where Curry struggled to start the series, converting on only 22 percent of his field goals in Game 2. In Game 5, he scored 37 points, and in Game 6, Golden State closed out the series to win their first championship in 40 years. For the Finals, Curry averaged 26 points and 6.3 assists per game.
New Orleans Pelicans, the most points scored by a reigning MVP in an opener since 1972 when Kareem Abdul-Jabbar scored 41 for the Milwaukee Bucks. In addition, Curry started his seventh straight season opener, joining Jeff Mullins, and Chris Mullin as the only Warriors' players since 1962 to do so. Two games later on October 31, also against the Pelicans, Curry scored 53 points on 17-of-27 shooting to lead the Warriors to a 134-120 win. Curry became the first player since Michael Jordan in 1989-90 to score 118 points in the first three games of a season. On November 24, he scored 24 points in a win over the Los Angeles Lakers, as the Warriors set the record for best start in NBA history at 16-0. The Warriors improved to 24-0 on December 11 with a double overtime win over the Boston Celtics, before finally having their streak broken the following day against the Milwaukee Bucks.
After dropping their season opener at home to the San Antonio Spurs on October 25, the Warriors levelled their record at 1-1 with a 122-114 win over the New Orleans Pelicans three days later. Curry hit four three-pointers against the Pelicans to reach 1,600 for his career, becoming the 19th player to do so, as well as the fastest to reach the mark. On November 4, 2016, Curry's NBA-record streak of 157 straight games with at least one made three-pointer was snapped during the Warriors' 117-97 loss to the Los Angeles Lakers after he went 0-of-10 from three-point range. He had hit a three-pointer in every regular-season game since November 11, 2014. Three days later, he hit 13 three-pointers against the New Orleans Pelicans, setting an NBA record for most three-pointers made in a regular-season game. Curry shot 16-of-26 overall against the Pelicans for his first 40-point game of the season, finishing with 46 in a 116-106 win.