Rapid transit in Spain consists of four metro systems, threeSource is from 2019, yet Cádiz Bay tram-train opened in 2022. hybrid metro-suburban systems. Spain also has several light rail systems, some with sections built to rapid transit standards.

Rapid transit systems City System Start of operations System length Lines Stations Gauge OperatorBarcelonaBarcelona Metro1924 12189 (L8)  (L1)  (all other lines)TMB/FGC Bilbao Bilbao Metro 11 November 1995 3 48 Biscay Transport Consortium (CTB) Madrid Madrid Metro17 October 191913301 (lines 1, 2, 3 4, and R) (other lines)Metro de Madrid Seville Seville Metro 2 April 2009 121Sociedad Concesionaria de la Junta de Andalucía

Hybrid metro/suburban systems City System Start of operations System length Lines Stations Gauge OperatorCadiz Trambahía26 October 202224 km (14.9 mi)1221,668 mm (5 ft 5+21⁄32 in)RenfePalma de MallorcaPalma Metro25 April 2007216SFMValenciaMetrovalencia5 May 19959137FGV

Light rail systems City System Start of operations System length Lines Stations Gauge OperatorGranadaGranada Metro21 September 201715.92 km (9.9 mi)1261,445 mm (4 ft 8+7⁄8 in),Metro De Granada/Junta de AndalucíaMálagaMálaga Metro30 July 201411.3 km (7 mi)2171,435 mm (4 ft 8+1⁄2 in)Metro de Málaga

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