Gossip Girl season 3

The third season of the American teen drama television series Gossip Girl premiered on The CW on September 14, 2009, and concluded on May 17, 2010, consisting of 22 episodes. Based on the novel series of the same name by Cecily von Ziegesar, the series was developed for television by Josh Schwartz and Stephanie Savage. The season premiered with 2.55 million viewers and a 1.4 Adults 18-49 rating, up 14% in viewers from its season two finale.

Overall, the season attracted an average of 2.02 million viewers tuning in each week, with a 1.1 rating in Adult 18–49.

Synopsis
High school is officially over for Blair, Serena, Nate, Chuck, Dan, and Vanessa as they leave their carefree days behind and start the new chapter in their life: Adulthood. Still at Constance for their junior year, Jenny and Eric's friendship is tested as Jenny starts her duties as the new Queen of Constance. Serena and Blair's friendship also gets tested as they grow and mature. Chuck and Blair are finally in a committed relationship but start question if it will work without any mind games. Serena and Nate's friendship begins to grow closer, and the same goes for Dan and Vanessa.

Main

 * Blake Lively as Serena van der Woodsen
 * Leighton Meester as Blair Waldorf
 * Penn Badgley as Dan Humphrey
 * Chace Crawford as Nate Archibald
 * Taylor Momsen as Jenny Humphrey
 * Ed Westwick as Chuck Bass
 * Jessica Szohr as Vanessa Abrams
 * Kelly Rutherford as Lily van der Woodsen
 * Matthew Settle as Rufus Humphrey
 * Kristen Bell as the voice of Gossip Girl (uncredited)

Recurring

 * Joanna Garcia as Bree Buckley
 * Connor Paolo as Eric van der Woodsen
 * Chris Riggi as Scott Rosson
 * Sebastian Stan as Carter Baizen
 * Aaron Schwartz as Vanya
 * Michelle Trachtenberg as Georgina Sparks
 * Zuzanna Szadkowski as Dorota Kishlovsky
 * Hilary Duff as Olivia Burke
 * Matt Doyle as Jonathan Whitney
 * Holley Fain as Maureen van der Bilt
 * Aaron Tveit as Tripp van der Bilt III
 * Kevin Zegers as Damien Dalgaard
 * Margaret Colin as Eleanor Waldorf
 * Caroline Lagerfelt as CeCe Rhodes
 * Laura Harring as Elizabeth Fisher
 * Sherri Saum as Holland Kemble
 * Desmond Harrington as Jack Bass
 * Wallace Shawn as Cyrus Rose

Guest

 * Ashley Hinshaw as herself
 * Tyra Banks as Ursula Nyquist
 * Sonic Youth as themselves
 * Gina Torres as Gabriela Abrams
 * Albert Hammond Jr. as himself
 * Lady Gaga as herself
 * Robert John Burke as Bart Bass
 * Willa Holland as Agnes Andrews
 * Luke Kleintank as Elliot Leichter
 * William Baldwin as William van der Woodsen

Ratings
The third season premiere was watched by 2.55 million viewers, with a rating and share of 1.7/3 in households and 1.4/3 in the 18-49 demographic.

In the Live + DVR Ratings the series has a larger increase. The third episode of the season, "The Lost Boy", in its original airing, it was watched by 2.36 million viewers, but with the DVR Ratings the episode scores nearly 3.0 million viewers. The fifth episode was watched by 2.36 million viewers on live broadcast, but with the DVR ratings, the episode scores 2.94 million viewers.

This is the least-watched season to date, with an average of 2.02 million viewers tuning in each week and a 1.1 rating in Adult 18–49, which was down 18% in total viewers from the previous season's 2.48 million, but up 0.2 in Adults 18-49.