Ulla Pedersen Tørnæs (born 4 September 1962) is a Danish politician of the Liberal Party.
From 1994 to 2014, she was a member of the Danish parliament (Folketing).
She served as Minister for Science, Technology, Information and Higher Education in the Lars Løkke Rasmussen II Cabinet of Denmark from February 2016 to November 2016 and as the Minister for Development Cooperation in the Lars Løkke Rasmussen III Cabinet.