A

{Refimprove|date=December 2009}}

Line A is a line of the Prague Metro, serving the Czech capital. Chronologically the second line in the system, it was first opened in 1978 and has expanded mostly during the 1980s. With the opening of the extension to Nemocnice Motol on 6 April 2015, Line A operates on approximately 17.1 km of route and serves 17 stations. An extension with a further five stations to the airport is currently planned.