Judith Margaret Farnworth (born 25 April 1966) is a British diplomat.
She was educated at Manchester High School for Girls, the University of Durham (BA Honours in Russian with Philosophy, 1988) and at the University of East Anglia (MA in International relations, 1990).
She joined the Foreign and Commonwealth Office after graduation in 1991, first as Senior Research Analyst at the Research and Analsysis Department in London.
From 2000 to 2004 she was head of the political section of the British Embassy in the Ukraine.
Deputy Head of Mission and Her Mayesty's Consul she was from 2005 to 2008 at the British Embassy in Riga and from 2008 to 2012 in Kiev, returning to the Ukraine.
She was appointed UK Ambassador to Kyrgyzstan in 2012, as the first ambassador in the newly founded embassy in Bishkek.
Diplomatic relations between the UK and Kyrgyzstan were formerly maintained by the British embassy in Kazakhstan.
She was succeeded in Kyrgyzstan by Robin Ord-Smith in 2015.
In September 2015 she became the UK Ambassador to Armenia.