Aileen Reid (née Morrison; born 15 June 1982 in Derry, Northern Ireland) is a professional triathlete from Northern Ireland who represented Ireland at the London 2012 & Rio 2016 Olympics.

Reid represents the North West Triathlon Club and competes for French team Poissy.

Also an accomplished runner and swimmer, Reid is a former NI Cross country champion, and won a medal at the World University Cross Country championships with Team Ireland.

Aileen trained as a physical education teacher prior to beginning her triathlon career.

She competed in the Women's triathlon at the 2012 Summer Olympics, where she finished in a disappointing 43rd place, almost 10 minutes behind winner Nicola Spirig.^[1] Reid suffered a crash on the first lap of the bike course as a result of wet roads.^[2]

She married in October 2012, and raced under her married name thereafter.

She finished the 2013 season ranked 8th in the World, with a silver medal at the ITU World Triathlon Series Grand Final in London. She has had two other World triathlon series podiums with a silver medal in Madrid in June 2012, and Hamburg in July 2010.

Reid competed in the Women's triathlon at the Rio 2016 Olympics and finished in 21st place.^[3]

She retired in July 2017.

The following list is based upon the official ITU rankings and the Athlete's Profile Page.^[4] The following events are triathlons (Olympic Distance) and belong to the Elite category.

BG = the sponsor British Gas · DNF = did not finish