Daniela Castelo (Buenos Aires, 8 October 1968 – Buenos Aires, 2 February 2011) was an Argentine journalist, eldest daughter of Adolfo Castelo (1940–2004).
She attended secondary school in the Liceo Nacional 9 in Buenos Aires.
She graduated in psychology in the University of Buenos Aires.
In 1987 she started to work as producer of La Noticia Rebelde, a historic program directed by her father.
Beginning in July 2010, she ran the program PrĂłfugos de la noticia in Nacional Rock FM 93.7 from Monday to Friday from 17:00 to 19:00.In November 2010 she submitted for publication a biography of her father written with her sister Carla.
On the evening of 2 February 2011, Daniela suffered a cerebral aneurysm and was admitted to the emergency room at the clinic Bazterrica in Buenos Aires, where she suffered a cardiac arrest and died.