Andrew Armstrong may refer to:

• Sir Andrew Armstrong, 1st Baronet (1786–1863), Irish politician
• Andrew Armstrong (American football) (born 2000), American football player
• Sir Andrew Armstrong, 3rd Baronet (1866–1922) of the Armstrong baronets
• Sir Andrew Armstrong, 5th Baronet (1912–1987) of the Armstrong baronets
• Sir Andrew Armstrong, 6th Baronet (1907–1997) of the Armstrong baronets
• Andrew Armstrong of DPP v Armstrong
• Andrew Marsicano Armstrong, father of American musician Billie Joe Armstrong

• All pages with titles containing Andrew Armstrong
• Andy Armstrong (disambiguation)