Ronchi dei Legionari is a comune in the regional decentralization entity of Gorizia in Friuli-Venezia Giulia, northeast Italy, about 14 km southwest of Gorizia and 30 km northwest of Trieste. It is the location of Trieste – Friuli Venezia Giulia Airport, the major commercial airport serving the region. The origins of the name Ronchi dei Legionari have been documented since 1229 in the Friulian form Ronches. Until 1925, it was called Ronchi di Monfalcone.