Avinguda de la Reina Maria Cristina (Catalan pronunciation: [əβiŋˈguðə ðə ɫə ˈrejnə məˈɾi.ə kɾisˈtinə]) is an avenue in the Sants-Montjuïc district of Barcelona linking Plaça d'Espanya with Museu Nacional d'Art de Catalunya on Montjuïc hill. It is named after Maria Christina of the Two Sicilies, queen consort and regent of Spain.
Part of the Fira de Barcelona is based here, with a number of yearly trade, technology and fashion fairs and festivals being held in this location. It's also the starting point of the Barcelona Marathon.