Katalin Erdelyi (1982) is a Hungarian journalist at Atlatszo.
She writes mostly about corruption and public procurement in Hungary. She is also the editor of political commentary blog "Thick Skin" (Vastagbor) and a popular Facebook page which monitors the quality of meals served in Hungarian hospitals. She started writing about politics as a hobby in 2008, since 2012 she has been working for atlatszo.hu.