JUNIOR PROFILE
Sian Cox

Sian Cox

UK Bar 2026

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Ranked in 1 practice area

About

Provided by Harcourt Chambers

Practice Areas

Public Law Children

Private Law Children

Direct Access

Career

Called 2008. Sian is a highly experienced barrister, with a practice covering public and private children cases. She is highly persuasive, effective and her clients find her to be a sympathetic advocate, one who understands the importance of building a strong rapport with clients in order to make difficult circumstances feel more tolerable. She has considerable legal knowledge and courtroom skills, which she deploys to achieve the best results for her clients.

Sian has extensive experience of representing all parties in public law proceedings, including those assisted by the official solicitor or intermediaries. Her practice covers the whole scope of public law, including highly complex medical cases. Sian has a thorough and pragmatic approach to case management in the early stages and is particularly effective in cross-examination and trial advocacy.

Sian has represented parents and children in a wide variety of private law cases. She has considerable experience of disputes concerning applications for child arrangements orders, and more specialist areas such as removal of parental responsibility and internal and international relocation. Sian has a reputation for being able to establish a rapport with a wide range of clients, from the very vulnerable to highly successful professionals. Her flexible and adaptable approach enables her to achieve positive outcomes for clients.

Professional Memberships

FLBA

Publications

A year of greater transparency: what have we seen? XY Twins Inflicted Injury [2024] EWFC – Blog February 2025

Transparency in the Family Court: Private Children Update Q&A – Blog March 2024

Chambers Review

Provided by Chambers

UK Bar

Family: Children - London (Bar)

Band 4
Band 4

Individual Editorial

Sian Cox is a very well-respected children law practitioner. She has in-depth knowledge of cases involving non-accidental injury and fabricated or induced illness fact-finding issues, as well as complex placement orders.

Strengths

Provided by Chambers

  • Sian did an amazing job distilling thousands of pages down into concise and helpful advice.

    Family: ChildrenUK Bar
  • Sian has been so amazingly supportive and helpful. She is on top of the case, very solution-focused, responsive and reliable.

    Family: ChildrenUK Bar
  • She is incredibly thorough and pre-empts what needs to be done.

    Family: ChildrenUK Bar

Ranked Barristers at Harcourt Chambers (36)

All Circuits

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    Family/Matrimonial: Non-Court Dispute Resolution

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London (Bar)

Midlands (Bar)

South Eastern (Bar)

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