[3][4] Martin started her acting career in 2007, in television programs such as Nickelodeon's Just Jordan and CBS's Close to Home, as well as a guest stint in the Disney Channel series The Suite Life of Zack & Cody.

Martin was eventually cast as the lead antagonist Tess Tyler in the Disney Channel original film, Camp Rock, starring Demi Lovato and the Jonas Brothers.

Martin starred in the ABC Family sitcom 10 Things I Hate About You as Bianca (originated by Larisa Oleynik in the film version) and received rave reviews for her performance in the series.

On June 16, 2011, Martin appeared for one night in Super Summer Theatre's live production of "Annie" at Spring Mountain Ranch in Las Vegas, Nevada, in the role of Star-To-Be.

[citation needed] Later in 2013, she appeared in the thriller The Good Mother which aired on Lifetime Channel and was cast as Julie #2 in MTV's Awkward, replacing Sophie Tilson.

Played the role of Sharon opposite Evan Peters and Juno Temple in the drama feature film Safelight, written and directed by Tony Aloupis.

[8] After re-locating permanently to the UK, it was announced on April 9, 2019, that Martin would make her professional London stage debut in The Actor's Nightmare by Tony award-winning playwright Christopher Durang.

[12] In December 2020, Martin played Lucy in the LGBTQ+ drama radio series Hell Cats for Audible, directed by Kate Saxon, alongside Adetomiwa Edun, Jonathan Bailey, and Erin Doherty.

[14][15] In January 2022, it was announced that Martin will star in the UK premiere of the play Never Not Once at the Park Theatre running through February and March 2022, in a cast including Flora Montgomery and Amanda Bright.

[23] London Theatre wrote "Eleanor is very believably acted by Meaghan Martin with a terrific sense of energy and disbelief at the havoc she has unleashed by her quest for the truth".

[24] In March 2022, it was announced that Martin would star in the upcoming British rom-com feature film Ten Dates, alongside a cast including Rosie Day, Rhiannon Clements and Sagar Radia.

[27] Smoke is a modern adaption of August Strindberg's Miss Julie set at a BDSM party in New York City, and was co-directed by Polina Kalinina and Júlia Levai.

Tender, brutal and utterly convincing, the measured sensuality of their movements contrasting intriguingly with line deliveries so naturalistic they sound like improvisation, this stunning pair mine Davies's text for all its dark humour and ambiguity.

"[31] The Arts Desk 5 star review from critic Gary Naylor praised Davies' "dazzling Strindberg update" as a "complicated, clever and challenging play unafraid to treat its audience as grown-ups and all the more rewarding for that.

"[32] Naylor writes that "the co-directors, Polina Kalinina and Júlia Levai are extremely adept at constructing this delicious set up and get super performances from their leads", before concluding that "Meaghan Martin, perfectly captures the coquettish bravado of Julie, that curdles into confusion, fear, and a cruetly both inflicted and endured.

"[32] As of its release on April 30 2023, Meaghan Martin can be seen starring in feature film Journey alongside Rafael Cebrian, Arcelia Ramirez and Gustavo Sanchez Parra.

[33] Journey is a drama feature written and directed by Christopher Rodriguez and explores poignant themes of family, love, legacy, and immigration - shot on location on the border between the US and Mexico.