Angus MacNeil represented Na h-Eileanan an Iar in the UK Parliament from 2005 to 2024. He chaired the Energy and Climate Change Committee from 2015 to 2016, the International Trade Committee from 2016 to 2023, and the Energy Security and Net Zero Committee from 2023 to 2024. He also served as Treasurer of the All-Party Parliamentary Group for Greenland.

Angus MacNeil is a native Gaelic speaker from Barra. He was in school in Barra and the Nicholson Institute in Stornoway. He studied Civil Engineering at Strathclyde University and then worked as a reporter at the BBC in Inverness for two years before becoming a Primary Teacher. He worked for two years in Salen in Mull where he started the Gaelic Unit before moving to Fort William. In the 2001 general election, Angus MacNeil was the SNP candidate for Inverness East Nairn and Lochaber. He returned to Barra to teach and worked in Eoligarry School at the northern end of the island until his election. Angus was elected as MP for Na h-Eileanan an lar (Western Isles) in May 2005.

During his parliamentary career, Angus served on the Scottish Affairs Committee, the Liaison Committee and the Joint Committee on the National Security Strategy. He also held shadow spokesperson roles covering Scotland, constitutional reform, transport, work and pensions, culture, media and sport, and environment, food and rural affairs.

His parliamentary work included roles with All-Party Parliamentary Groups concerning the Faroe Islands, Finland, Sweden, China, Taiwan, Switzerland, the Bahamas, Mauritius, the Pacific Islands, Denmark, Liechtenstein, Iceland, Norway and animal welfare. He received awards from The Spectator and the Political Studies Association for setting the political agenda in Britain during 2006.