One Tree Hill season 4

One Tree Hill
Season 4
One Tree Hill Season 4 DVD cover
No. of episodes	21
Release
Original network	The CW
Original release	September 27, 2006 (2006-09-27) – June 13, 2007 (2007-06-13)
Season chronology
← Previous Season 3 Next → Season 5
List of episodes

The fourth season of One Tree Hill began airing on September 27, 2006. The season concluded on June 13, 2007, after 21 episodes. This is the first season to air on the newly formed The CW television network.

Season four rose in ratings, becoming #133 in the Nielsen ratings system with 1.3 rating^[1] and averaging 2.99 million viewers. Episode #10 "Songs To Love and Die By" was the highest rated episode of the season by having 4.24 million viewers tuning in and the most viewed among the entire series after season 2 along with the previous one, "Some You Give Away", which had 4.21 million viewers tuning in.

The season had a brief hiatus for three months from February 2007 to May 2007, to make their timeslot available for the short-lived series Pussycat Dolls Present: The Search for the Next Doll. The show returned May 2, 2007 to air the last 6 episodes of the season. This marked the first and last season of the show to air into June.

In this season, most episodes were named after rock albums rather than after songs.