KNB can refer to KNB EFX Group, an American special effects company Keolis Northern Beaches, Australian bus operator Kanab Municipal Airport, an airport near Kanab, Utah Kitanihon Broadcasting, a Japanese media company Kean Nakamura-Berta, a Japanese and Slovak racing driver National Security Committee of the Republic of Kazakhstan, also referred to as the NSC or KNB Kalaallit Nunaanni Brugseni, a Greenlandic supermarket chain better known as Brugseni