INN meaning in Airport Code ?

Innsbruck (German: [ˈɪnsbʁʊk] (listen); Austro-Bavarian: Innschbruck [ˈɪnʃprʊk]) is the capital of Tyrol and fifth-largest city in Austria. On the River Inn, at its junction with the Wipp Valley, which provides access to the Brenner Pass 30 km (18.6 mi) to the south, it had a population of 132,493 in 2018.

In the broad valley between high mountains, the so-called North Chain in the Karwendel Alps (Hafelekarspitze, 2,334 metres or 7,657 feet) to the north and Patscherkofel (2,246 m or 7,369 ft) and Serles (2,718 m or 8,917 ft) to the south, Innsbruck is an internationally renowned winter sports centre; it hosted the 1964 and 1976 Winter Olympics as well as the 1984 and 1988 Winter Paralympics. It also hosted the first Winter Youth Olympics in 2012. The name means "bridge over the Inn".