| Honorific-Prefix: | His Excellency |
| Simon Smith | |
| Office: | British Ambassador to South Korea |
| Primeminister: | Theresa May Boris Johnson |
| Term Start: | March 2018 |
| Term End: | 2022 |
| Predecessor: | Charles Hay |
| Successor: | Colin Crooks |
| Office2: | British Ambassador to Ukraine |
| Monarch2: | Elizabeth II |
| Primeminister2: | David Cameron |
| Term Start2: | 2012 |
| Term End2: | 2015 |
| Predecessor2: | Leigh Turner |
| Successor2: | Judith Gough |
| Office3: | British Ambassador to Austria |
| Monarch3: | Elizabeth II |
| Primeminister3: | Gordon Brown David Cameron |
| Term Start3: | 2007 |
| Term End3: | 2012 |
| Predecessor3: | John Macgregor |
| Successor3: | Susan le Jeune d'Allegeershecque |
| Birth Name: | Simon John Meredith Smith |
| Birth Date: | 1958 1, df=y |
| Birth Place: | Wegberg, Germany |
| Nationality: | British |
| Education: | Clifton College |
| Alma Mater: | Wadham College, Oxford |
| Spouse: | Sian Stickings |
| Children: | 2 daughters |
Simon John Meredith Smith (born 14 January 1958) is a British diplomat, most recently the ambassador (now retired) to the Republic of Korea (South Korea).
Smith attended the Triple C School in Grand Cayman, then Clifton College. From Wadham College, Oxford, he gained a BA in Modern Languages in 1980.
From 1981 to 1986 Smith worked at the Department of Employment. He joined Her Majesty's Diplomatic Service in 1986 and has held positions in London, Tokyo, and as Counsellor (Economic/Commercial) in Moscow 1998–2002.
From 2007 to 2012 Smith served as Ambassador to Austria, based in Vienna, and as the UK's representative to many UN and international organisations in Vienna, including as the UK's Governor on the Board of the International Atomic Energy Agency. His transfer to Kyiv as Ambassador to Ukraine was announced on 13 October 2011[1] and he took up the appointment in 2012. He was replaced in 2015.[2] After a brief spell in London and Korean language training, he was appointed Ambassador to South Korea[3] and took up the post in March 2018.[4]
Smith married Sian Stickings in 1984. She was appointed MBE "for services to the local and British communities in Russia" in the 2003 New Year Honours, following Smith's service in Moscow. They have two daughters.