| 02 Sept 19 | R. Falcao Radamel Falcao |  AS MonacoMON | → |  GalatasarayGAL | Free |
| 01 Sept 19 | J. Augustin Jean-Kévin Augustin |  RB LeipzigRBL | → | AS MonacoMON | Loan |
| 01 Sept 19 | J. Augustin Jean-Kévin Augustin | RB LeipzigRBL | → | AS MonacoMON | Loan |
| 31 Aug 19 | T. Bakayoko Tiemoué Bakayoko |  ChelseaCHE | → | AS MonacoMON | Loan |
| 31 Aug 19 | T. Bakayoko Tiemoué Bakayoko | ChelseaCHE | → | AS MonacoMON | Loan |
| 24 Aug 19 | A. Silva Adrien Silva |  Leicester CityLEI | → | AS MonacoMON | Loan |
| 24 Aug 19 | A. Silva Adrien Silva | Leicester CityLEI | → | AS MonacoMON | Loan |
| 21 Aug 19 | I. Slimani Islam Slimani | Leicester CityLEI | → | AS MonacoMON | Loan |
| 21 Aug 19 | I. Slimani Islam Slimani | Leicester CityLEI | → | AS MonacoMON | Loan |
| 14 Aug 19 | R. Lopes Rony Lopes | AS MonacoMON | → |  SevillaSEV | Undisclosed |
| 14 Aug 19 | R. Lopes Rony Lopes | AS MonacoMON | → | SevillaSEV | Undisclosed |
| 14 Aug 19 | W. Ben Yedder Wissam Ben Yedder | SevillaSEV | → | AS MonacoMON | Undisclosed |
| 14 Aug 19 | W. Ben Yedder Wissam Ben Yedder | SevillaSEV | → | AS MonacoMON | Undisclosed |
| 12 Aug 19 | H. Onyekuru Henry Onyekuru |  EvertonEVE | → | AS MonacoMON | Undisclosed |
| 12 Aug 19 | H. Onyekuru Henry Onyekuru | EvertonEVE | → | AS MonacoMON | Undisclosed |
| 07 Aug 19 | D. Sidibé Djibril Sidibé | AS MonacoMON | → | EvertonEVE | Loan |
| 07 Aug 19 | D. Sidibé Djibril Sidibé | AS MonacoMON | → | EvertonEVE | Loan |
| 06 Aug 19 | Pelé | AS MonacoMON | → |  ReadingREA | Loan |
| 06 Aug 19 | Pelé | AS MonacoMON | → | ReadingREA | Loan |
| 05 Aug 19 | H. Massengo Han-Noah Massengo | AS MonacoMON | → |  Bristol CityBRC | Undisclosed |
| 05 Aug 19 | H. Massengo Han-Noah Massengo | AS MonacoMON | → | Bristol CityBRC | Undisclosed |
| 10 Jul 19 | A. Barreca Antonio Barreca | AS MonacoMON | → |  GenoaGEN | Loan |
| 10 Jul 19 | A. Barreca Antonio Barreca | AS MonacoMON | → | GenoaGEN | Loan |
| 08 Jul 19 | Y. Tielemans Youri Tielemans | AS MonacoMON | → | Leicester CityLEI | Undisclosed |
| 08 Jul 19 | Y. Tielemans Youri Tielemans | AS MonacoMON | → | Leicester CityLEI | Undisclosed |
| 01 Jul 19 | R. Pierre-Gabriel Ronael Pierre-Gabriel | AS MonacoMON | → |  MainzMAIN | Undisclosed |
| 01 Jul 19 | R. Pierre-Gabriel Ronael Pierre-Gabriel | AS MonacoMON | → | MainzMAIN | Undisclosed |
| 31 Jan 19 | G. Nkoudou Georges-Kévin Nkoudou |  Tottenham HotspurTOT | → | AS MonacoMON | Loan |
| 31 Jan 19 | A. Silva Adrien Silva | Leicester CityLEI | → | AS MonacoMON | Loan |
| 31 Jan 19 | Y. Tielemans Youri Tielemans | AS MonacoMON | → | Leicester CityLEI | Loan |
| 31 Jan 19 | A. Touré Almamy Touré | AS MonacoMON | → |  Eintracht FrankfurtSGE | Undisclosed |
| 31 Jan 19 | A. Touré Almamy Touré | AS MonacoMON | → | Eintracht FrankfurtSGE | Undisclosed |
| 31 Jan 19 | Pelé | AS MonacoMON | → |  Nottingham ForestFOR | Loan |
| 31 Jan 19 | Y. Aït Bennasser Youssef Aït Bennasser | AS MonacoMON | → |  Saint-EtienneASSE | Loan |
| 31 Jan 19 | L. Badiashile Loic Badiashile | AS MonacoMON | → |  Stade RennaisREN | Loan |
| 31 Jan 19 | A. Barreca Antonio Barreca | AS MonacoMON | → |  Newcastle UnitedNEW | Loan |
| 31 Jan 19 | A. Barreca Antonio Barreca | AS MonacoMON | → | Newcastle UnitedNEW | Loan |
| 31 Jan 19 | Pelé | AS MonacoMON | → | Nottingham ForestFOR | Loan |
| 31 Jan 19 | Y. Tielemans Youri Tielemans | AS MonacoMON | → | Leicester CityLEI | Loan |
| 31 Jan 19 | A. Silva Adrien Silva | Leicester CityLEI | → | AS MonacoMON | Loan |
| 31 Jan 19 | G. Nkoudou Georges-Kévin Nkoudou | Tottenham HotspurTOT | → | AS MonacoMON | Loan |
| 30 Jan 19 | Carlos Vinicius |  NapoliNAP | → | AS MonacoMON | Loan |
| 30 Jan 19 | Carlos Vinicius | NapoliNAP | → | AS MonacoMON | Loan |
| 27 Jan 19 | G. Martins Gelson Martins |  Atletico MadridATL | → | AS MonacoMON | Loan |
| 27 Jan 19 | G. Martins Gelson Martins | Atletico MadridATL | → | AS MonacoMON | Loan |
| 12 Jan 19 | W. Vainqueur William Vainqueur |  AntalyasporANT | → | AS MonacoMON | Loan |
| 11 Jan 19 | C. Fàbregas Cesc Fàbregas | ChelseaCHE | → | AS MonacoMON | Undisclosed |
| 11 Jan 19 | C. Fàbregas Cesc Fàbregas | ChelseaCHE | → | AS MonacoMON | Undisclosed |
| 03 Jan 19 | Naldo |  Schalke 04SCHA | → | AS MonacoMON | Undisclosed |
| 03 Jan 19 | Naldo | Schalke 04SCHA | → | AS MonacoMON | Undisclosed |