Henry Mills (1868 – 11 March 1928) was a British politician and anti-Sabbatarianist activist.
In 1888, Mills became the secretary of the National Sunday League, an organisation which opposed Sabbatarianism.
Under his leadership, it succeeded in legalising musical concerts on Sundays, and it ran successful excursions to seaside resorts on Sundays.
[1] He served for nine years as a Liberal Party alderman on Islington Metropolitan Borough Council, and in 1905/06, he served as Mayor of Islington.
[2] He stood as a Liberal Party candidate in the 1922 UK general election in Islington West, taking a close second place with 35.3% of the vote.