This page lists historical and other events on August 17th in Catalonia and the Catalan-speaking countries as well as a list of births and deaths of well-known Catalans.
1358 - València: a swelling of the River Túria floods l'Horta and causes more than 400 víctims.
1694 - Valls (l'Alt Camp): The Avalot dels Pobres, calls on the clergy and nobles, who until then were exempt, to contribute to the cost of the military.
2017 - Barcelona: 22-year-old Younes Abouyaaqoub drove a van into pedestrians on La Rambla, killing 13 people and injuring at least 130 others, one of whom died 10 days later on 27 August. Nine hours after the Barcelona attack, five men thought to be members of the same terrorist cell drove into pedestrians in nearby Cambrils, killing one woman and injuring six others.
1934 - Tortosa: Ricard Salvat i Ferré, Catalan writer and theatre director.
1947 - Barcelona: Pedro Ruiz, Catalan performer, writer and TV presenter.
1978 - L'Hospitalet de Llobregat: Enrique de Lucas Martínez, known as Quique de Lucas, Catalan footballer, who played for RCD Espanyol and other clubs in Spain and Europe.
906 - Girona (el Gironès): Servus Dei, Catalan priest, Bishop of Girona.
1909 - Barcelona (el Barcelonès): Josep Miquel i Baró, Catalan politician and revolutionary.
1936 - Sabadell: Josep Germà i Homet, liquor factory owner, sponsor of culture and sport and mayor of Sabadell.
1956 - Barcelona: Paulí Castells i Vidal, Catalan industrial engineer and politician.
1958 - Tulacingo, Hidalgo, Mèxic: Miquel Bertran i Oleart, the last republican mayor of Sabadell.
2006 - Barcelona (el Barcelonès): Agustí de Semir, Catalan lawyer and politician.