Harald August Bohr (22 April 1887 – 22 January 1951) was a Danish mathematician and footballer.
After receiving his doctorate in 1910, Bohr became an eminent mathematician, founding the field of almost periodic functions on which he published a comprehensive survey in the period from 1954 to 1974 with the help of his son-in-law, mathematician Erling Følner.
His brother was the Nobel Prize-winning physicist Niels Bohr.
He was a member of the Danish national football team for the 1908 Summer Olympics, where he won a silver medal.