This award was introduced in 1985, as Actor of the Year, then retitled to its current name for the 1993 ceremony. Prior to this award, from 1976 to 1984 (and again in 1988), there was a pair of awards given each year for this general category, one for Actor of the Year in a New Play and the other for Actor of the Year in a Revival.
Note: The below awards and nominations include individuals awarded and nominated under the now-defunct categories Actor of the Year in a New Play and Actor of the Year in a Revival as well as the current combined Best Actor category.
^Thomas, Sophie (2022-03-08). "Everything you need to know about the Olivier Awards". londontheatre.co.uk. Archived from the original on 2022-04-11. Retrieved 2022-04-25. Any new production that opened between 19 Feb. 2020 to 22 Feb. 2022 are eligible for categories in the 2022 Olivier Awards. With two years worth of shows set for honours in one year's ceremony, the 2022 Olivier Awards will prove tougher competition than before.