The ninth season of Degrassi: The Next Generation premiered in Canada on October 4, 2009, concluded on July 16, 2010, and consists of twenty-three episodes. Degrassi: The Next Generation is a Canadian serial teen drama television series. Although only one school year passed in the story timeline since season six, season nine is set in the spring semester in which the years it aired. Writers have been able to use a semi-floating timeline, so that the issues depicted are modern for their viewers. This season continues to depict the lives of a group of high school freshmen, juniors and seniors, and graduates as they deal with some of the challenges and issues that young adults face such as drug abuse, sexting, sexually transmitted diseases, sexual identity, homosexuality, crime, sex, and relationships.

Degrassi: The Next Generation is a Canadian teen drama television series created by Yan Moore and Linda Schuyler. It is the fourth series in the Degrassi franchise and a revival of Degrassi Junior High and Degrassi High. It premiered on CTV on October 14, 2001 and concluded on August 2, 2015 on MTV Canada.