Dagny Caroline "Dakky" Kiær (19 August 1892 – 21 July 1980) was a Norwegian politician for the Liberal Party, feminist and civic leader.
She was born in Aker as a daughter of barrister and former mayor of Aker, Georg Fredrik Egidius Kiær and Julie Caroline Helene Løvenskiold. Her maternal grandfather Herman Severin Løvenskiold (1838–1910) was Lord Chamberlain of the Royal Court. She was sister of industrialist Thorry Kiær.