Bilbor is a commune in Harghita County, Transylvania, Romania. It is composed of two villages, Bilbor and Răchitiș. Its name is of Slavic or…Bilbor is a commune in Harghita County, Transylvania, Romania. It is composed of two villages, Bilbor and Răchitiș. Its name is of Slavic origin, meaning white pine, derived from *bělъ, white and *borъ, pine.