Bliznakov is a Bulgarian surname. Notable people with the surname include:
Georgi Bliznakov (1920–2004), Bulgarian chemist Mario Bliznakov (born 1982), Bulgarian footballer Milka Bliznakov (1927–2010), Bulgarian architect Nikolay Bliznakov (born 1950), Bulgarian journalist, publicist and politician Veselin Bliznakov (born 1944), Bulgarian politician