Joan Martí i Alanis (29 November 1928 – 11 October 2009) was a Spanish Catholic prelate who served as Bishop of Urgell and ex officio episcopal co-Prince of Andorra from 1971 to 2003. He was a co-signatory, along with François Mitterrand, of Andorra's new constitution in 1993.
In 1979, he founded Caritas Andorra.