Valeri Nisim Mevorah (; 22 April 1920 – 27 August 2014), better known as Valeri Petrov (), was a Bulgarian poet, screenwriter, playwright and translator. He was active between 1945 and the 1990s. He wrote the screenplay for a movie called "Yo Ho Ho" in 1981. It was made into a movie again in 2006, called "The Fall" .