The station is situated at 366 m (1,201 ft) altitude. Ossun station is part of the railway region of Toulouse, and is at PK 166,450 along the line from Toulouse–Bayonne, between the stations of Tarbes and Lourdes.
The station has two platforms. Platform 1 has an effective length of 213 m (699 ft) and platform 2 has an in-use length of 153 m (502 ft).
History
The Chemins de fer du Midi opened the station of Ossun, between those of Juillan and Adé, on 9 April 1866. This was just before the opening of the rest of the railway line from Tarbes to Lourdes on 20 April 1866.