Mark Senior

{{onesource|date=February 2025}}

{{short description|Jamaican sprinter}}

{{Use dmy dates|date=July 2020}}

{{Infobox sportsperson

| name = Mark Senior

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| nationality = Jamaican

| sport = Sprinting

| event = 400 metres

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| birth_date = {{birth date and age|1963|12|13|df=yes}}

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Mark Senior (born 13 December 1963) is a Jamaican sprinter. He competed in the men's 400 metres at the 1984 Summer Olympics.{{cite Sports-Reference |url=https://www.sports-reference.com/olympics/athletes/se/mark-senior-1.html |archive-url=https://web.archive.org/web/20200418050313/https://www.sports-reference.com/olympics/athletes/se/mark-senior-1.html |url-status=dead |archive-date=18 April 2020 |title=Mark Senior Olympic Results |access-date=3 August 2017}}