Anne-Marie har sort bælte i [[Shotokan karate]] efter hun startede med at gå til karate som 9-årig.<ref name="dailytelegraph">{{cite web |url=http://www.dailytelegraph.com.au/entertainment/sydney-confidential/who-is-anne-marie-dating-star-wont-tell-a-secret/news-story/a566c74ee1c55d80a4fde4fb06554929 |title=Who is Anne Marie dating? Star won't tell a secret |work=[[The Daily Telegraph (Sydney)|The Daily Telegraph]] |date=9. maj 2016 |access-date=27. februar 2020 |first=Jonathon |last=Moran |archive-date=6. november 2017 |archive-url=https://web.archive.org/web/20171106193111/http://www.dailytelegraph.com.au/entertainment/sydney-confidential/who-is-anne-marie-dating-star-wont-tell-a-secret/news-story/a566c74ee1c55d80a4fde4fb06554929 |url-status=live }}</ref> Hun vandt to gange guld ved Funakoshi Shotokan Karate Association World Championships i 2002, guld og sølv ved Funakoshi Shotokan Karate Association World Championships i 2007 og guld ved United Kingdom Traditional Karate Federation National Championships.<ref name="tokonkai">{{cite web |url=http://www.tokonkai-karate.co.uk/instructors.html |title=Instructors |publisher=Tokon Kai |access-date=8. november 2016 |archive-url=https://web.archive.org/web/20180109024926/http://www.tokonkai-karate.co.uk/instructors.html |archive-date=9. januar 2018 |url-status=dead }}</ref><ref>{{cite news |url=https://www.bbc.com/news/entertainment-arts-40447404 |title=Anne-Marie: Pop star and karate champion |last=McIntosh |first=Steven |date=2. juli 2017 |work=[[BBC News]] |access-date=9. december 2017 |archive-date=6. december 2017 |archive-url=https://web.archive.org/web/20171206011114/http://www.bbc.com/news/entertainment-arts-40447404 |url-status=live }}</ref> Hun tillægger sin karate værdi, i form af "discipline and focus – basically everything I need for this career" (''oversat: disciplin og fokus - i bund og grund alt hvad jeg behøver til denne karriere'').<ref name="bbc">{{cite web|url=http://www.bbc.co.uk/newsbeat/article/35471096/rudimental-singer-anne-marie-brands-herself-singer-and-ninja|title=Rudimental singer Anne-Marie brands herself 'singer and ninja|publisher=[[BBC]]|access-date=27. februar 2020|date=2. februar 2016|first=Nesta|last=McGregor|archive-date=11. oktober 2019|archive-url=https://web.archive.org/web/20191011105722/http://www.bbc.co.uk/newsbeat/article/35471096/rudimental-singer-anne-marie-brands-herself-singer-and-ninja|url-status=live}}</ref> Hun har dog ikke længere tid til at træne regelmæssigt på grund af hendes spillejobs.<ref name="dailytelegraph"/> Hun gik på [[USP College|Palmer's College]] i [[Thurrock]] som teenager.<ref>{{cite web |url=
https://www.essexlive.news/news/celebs-tv/essex-school-extremely-proud-chart-1502945 |title= Essex school "extremely proud" of chart-topping former student Anne-Marie as debut album 'Speak Your Mind' is released |last= Wathen |first= Tommy |date= 27. april 2018
|website= essexlive.news |publisher= Essex Live |access-date= 5. august 2021}}</ref>
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