Senjski Rudnik (Serbian Cyrillic: Сењски Рудник) is a village in eastern Serbia, in the municipality of Despotovac. According to the 2011 census, it had a population of 438. It is the site of the oldest preserved coal mine in Serbia, established in 1853. The mine marks the beginnings of the industrial revolution in Serbia. As of 2010, there is an ongoing project, sponsored by the Council of Europe and Serbian Ministry of Culture, of restoration of preservation of the mine complex, which will turn the entire site into an open-air museum and historical heritage site.