Papa Alioune Ndiaye (IPA: [nd?aj]; born 27 October 1990), known as Badou Ndiaye, is a Senegalese professional footballer who plays as a midfielder for Stoke City.
Badou began his career with Diambars in his native Senegal before moving to Norwegian side Bodø/Glimt in 2012.
After impressing in Norway he joined Turkish Süper Lig side Osmanlispor in 2015.
He spent two years with Osmanlispor before joining Galatasaray in August 2017 for a fee of €7.5 million.
In January 2018 Badou signed for English Premier League club Stoke City for a fee of £14 million.
Following Stoke's relegation in 2017–18, Badou re-joined Galatasaray on loan for the 2018–19 season.