The FM- and TV-mast Katowice / Kosztowy (RTCN Katowice / Kosztowy) is a 355 metre tall guyed mast for FM and TV situated at Mysłowice - near Kosztowy, Poland (Geographical Coordinates: 50°11'20", 19°07'06" E 50°11′20″N 19°07′06″E / 50.18889°N 19.11833°E / 50.18889; 19.11833).). It replaced the TVP Katowice Mast which was dismantled in the 1970s.
The TVP Katowice Mast which it replaced was a 225 metre-high guyed steel framework mast with triangular cross section near Katowice, Poland. It was not the transmission site for the medium-wave frequency 1080 kHz. This frequency is transmitted by the transmitter Koszęcin.
The FM- and TV-mast Katowice / Kosztowy is since the collapse of the Warsaw radio mast the second tallest structure in Poland. It was inaugurated on June 23, 1976.