Victoria Marguerite Treadell, CMG, MVO (née Jansz; born 4 November 1959) is the high commissioner of the United Kingdom to Australia and has been in the posting since April 2019.

[6] On 12 February 2019, Treadell was announced as the next British High Commissioner to Australia, in succession to Menna Rawlings, taking up the post in March 2019.

[8] The letter, showed "stern"[9] disapproval for how Australia had revealed its security concerns over the UK's invitation to Huawei into its 5G network, which had been expressed both to her, and her Foreign Secretary Dominic Raab, in a private briefing.

In 2021, she was branded as a "sanctimonious bore" by senior members of the Australian government over "publicly lecturing" Australia on its allegedly inadequate efforts to combat climate change.

[2] In addition, due to her interest in culture and arts, she has been one of the patrons of the Singapore-based British Theatre Playhouse since 2014, with regard to the plays that are produced in Malaysia.