Rosemary Clare Duffield (born 1 July 1971) is a British politician who has served as Member of Parliament (MP) for Canterbury since 2017.

Rosemary Duffield was born on 1 July 1971 in Norwich, and later moved to south-east London where her father worked as an anti-terrorism police officer.

[23] In May 2020, she resigned from the position after breaking COVID-19 lockdown rules when she met her married partner whilst they were living in separate households.

[24][25][26] In July 2020, Duffield voiced in Parliament concerns about nitrous oxide being sold to and used recreationally by young people, calling for tighter restrictions on its sale.

[27] In June 2024, Duffield announced that she would not be attending local hustings for the general election because of concerns about her security, referring to "constant trolling, spite and misinterpretation".

[31][32] In her resignation letter, she criticised Starmer's "cruel and unnecessary policies", "sleaze, nepotism and apparent avarice", and "hypocrisy" over his acceptance of gifts.

[35] Duffield reasserted her commitment to reforming the Gender Recognition Act 2004 and to being a supporter of trans rights following the staff member's resignation.

[37] During an interview with the BBC's Andrew Marr in 2021, Labour leader Keir Starmer said that Duffield's comment that only women have a cervix was "something that shouldn't be said" and was "not right".

[39] Labour MPs Jess Phillips,[40] Rachel Reeves and Wes Streeting supported Duffield, as did the Archbishop of Canterbury Justin Welby, who tweeted that "she does not seek to demean others".

"[43] Talking to screenwriter and anti-transgender activist[44][45] Graham Linehan in the same month, Duffield described non-binary gender as "choosing not to be male or female".

[46] In October 2021, Duffield attended the first annual conference of the LGB Alliance where she spoke on a panel about free speech alongside fellow MP Joanna Cherry.

[56] The Times reported that Duffield had denied allegations of anti-semitism, stating that the tweet had been "sarcastically mocking" of Izzard's reference to trans people being targeted during the Holocaust.

"[62] Duffield later made an unannounced appearance to speak at a fringe event at the party's conference hosted by the Labour Women's Declaration group.