Mark Armstrong

Mark Armstrong may refer to:

• Mark Armstrong (astronomer) (born 1958), British amateur astronomer
• Mark Armstrong (basketball) (born 2004), American college basketball player
• Mark Armstrong (economist) (born 1964), British economist and academic
• Mark Armstrong (equestrian) (born 1961), British international representative show-jumper
• Mark Armstrong (footballer), New Zealand international association football player
• Mark Armstrong (musician) (born 1972), British jazz musician and composer
• Mark Armstrong, television executive, chair of the Australian Broadcasting Corporation Board in the 1990s
• Mark Armstrong, writer, co-creator of Spider-Ham