The Ambassador of the United Kingdom to Laos is the United Kingdom's foremost diplomatic representative to the Lao People's Democratic Republic. After autonomy from France in 1949, the post was initially carried out on a non-resident basis in conjunction with British Ambassador to Vietnam. From 1955 until 1985 there was a full Ambassador to the Republic, then until 2012 the post was combined with that of British Ambassador to Thailand. The official title is His Britannic Majesty's Ambassador to the Lao People's Democratic Republic or HMA Vientiane. From October 2012, the United Kingdom once again has a resident Ambassador in Vientiane.^[1]

Non-resident Ambassador to Laos (and Ambassador to Vietnam)

• 1951–(1955): [[Hubert Graves|Sir Hubert Graves KCMG MC]]^[2]

Ambassador to Laos

• 1954–1956: [[Milo Talbot, 7th Baron Talbot de Malahide|The Lord Talbot de Malahide CMG]]^[3]
• 1956–1958: [[Leonard Holliday (diplomat)|Leonard Holliday CMG]]^[4]
• 1958–1960: [[Anthony Lincoln|Sir Anthony Lincoln KCMG CVO]]^[5]
• 1960–1962: [[John Addis|Sir John Addis KCMG]]^[6]
• 1962–1965: [[Donald Hopson|Sir Donald Hopson KCMG DSO MC TD]]^[7]
• 1965–1967: [[Frederick Warner (diplomat)|Sir Frederick Warner GVCO KCMG]]^[8]
• 1967–1970: [[Harold Smedley|Sir Harold Smedley KCMG MBE]]^[9]
• 1970–1973: [[John Lloyd (diplomat)|John Lloyd CBE]]^[10]
• 1973–1975: [[Alan Davidson (food writer)|Alan Davidson CMG]]^[11]
• 1976–1978: [[Donald Cape|Donald Cape CMG]]^[12]
• 1978–1980: [[John Stewart (diplomat)|John Stewart CMG OBE]]^[13]
• 1982–1985: Bernard Dobbs^[14]

Non-resident Ambassador to Laos (and Ambassador to Thailand)

• (1981)–1986: [[Justin Staples|Justin Staples CMG]]^[15]
• 1986–1989: [[Derek Tonkin|Derek Tonkin CMG]]^[16]
• 1989–1992: [[Ramsay Melhuish|Sir Ramsay Melhuish KBE CMG]]^[17]
• 1992–1996: [[Christian Adams (diplomat)|Christian Adams CMG]]^[18]
• 1996–2000: [[James Hodge (diplomat)|Sir James Hodge KCVO CMG]]^[19]
• 2000–2003: [[Barney Smith (diplomat)|Barney Smith CMG]]^[20]

• 2003–2007: [[David Fall (diplomat)|David Fall CMG]]^[21]
• 2007–2010: Quinton Quayle^[22]
• 2010–2012: Asif Ahmad^[23]

Ambassador to Laos

• 2012–2015: Philip Malone^[24]
• 2015–2019: Hugh Evans^[25][26]
• 2019–present^[update]: John Pearson^[27]