Mia Jones is an student at Degrassi Community School in Degrassi: The Next Generation. She is portrayed by the actress Nina Dobrev.

Season 6:
Spirit Squad and Isabella

At the beginning of season 6, Mia is introduced as a new student to Degrassi, being a former student of rival school Lakehurst. She was first seen in episode 604 ("Can't Hardly Wait"), in which she wants to join the Spirit Squad, but captains Manny and Darcy discover that she had a 2-year old-daughter named Isabella. Against the idea of premarital sex and teens with children, Darcy decides that she doesn't want a single teen mother to be on the Squad. However, Manny stands up for Mia, and she is allowed onto the team.

Later at a basketball game, a Lakehurst spectator by the name of Nic loudly insults and humiliates Mia in front of the school, which then starts the first of many conflicts between Lakehurst and Degrassi. It is later revealed that Nic was Mia's ex-boyfriend, and that he was jealous of J.T., who had shown interest in Mia.

Relationship with J.T.

After J.T. scores a job working on a children's television show, he learns that Mia's daughter Isabella is a fan of his. To become better acquainted with Mia, J.T. invites the mother and daughter to a taping of the show. Mia makes an attempt at asking J.T. out, and after some deliberation, he gives in. During their date, J.T. learns of the involvement Mia has with Lakehurst, which later becomes a large storyline to the series. J.T. and Mia eventually become a couple.

In the episode "Rock This Town", after being stabbed by a Lakehurst student in the heart at a party, J.T. dies. Mia, who was out of town during the incident, is devastated by the news and requests a tape of J.T. and Isabella to be played at his memorial. Toby later reveals to Mia that on the night of the stabbing, J.T. had admitted to Toby that he was still in love with ex-girlfriend Liberty.

Season 7:
Rivalry with Holly J.

After Lakehurst is devastated by a fire over Christmas Break, its students are hastily moved into Degrassi, forcing students to share lockers. Mia is paired with Holly J. (sister of the infamous Heather Sinclair), and the two are instantly at odds with each other, especially after being acquainted with Lakehurst student Sav, whom the two girls both are interested in. The two battle it out, using insults on each other both in and out of class. After Holly J. implies that she strongly disapproves of Mia being a teenage mother, Mia evicts Holly J. from their locker.

Feelings for Sav

Mia has her eyes on a new Lakehurst guy, Sav. He appears to show interest in her, too, however after Mia and Holly J. have a heated personal debate during class with Sav in the middle of the action, his liking for Mia seems to dissolve slightly. In an attempt to win him back, Mia apologizes to Sav and the two go to The Dot for a date. However, the next day at school, Mia suggests to Sav that they start hanging out more with each other, and he admits to her that he's not interested in getting involved with anyone at the moment, which leaves Mia heartbroken. Later during the Purple Dragon Event,Mia approaches Sav at the badminton tournament and he encourages her to get back involved in the game, stating how good she was at the sport back at their old school Lakehurst. Mia is reluctant because of her baby, but she gets back into it and her feelings for Sav overtake. She goes to kiss him but he admits he's "never done it." She says it's OK and that lots of people are virgins. he then admits that he's never kissed a girl. she says that in exchange for badminton lessons she'll teach him how to show affection and eventually give him his first kiss. when she goes to kiss him publicly after their badminton triumph, he backs off. Mia and Holly J. later see Sav looking at Anya's sticker book with her.