The men's 100m breaststroke events at the 2019 World Para Swimming Championships were held in the London Aquatics Centre at the Queen Elizabeth Olympic Park in London between 9–15 September.^[1]

Event	Gold	Silver	Bronze
SB4	Dmitrii Cherniaev  Russia	Moisés Fuentes  Colombia	Francesco Bocciardo  Italy
SB5	Andrei Granichka  Russia	Li Junsheng  China	Antoni Ponce Bertran  Spain
SB6	Nelson Crispín  Colombia	Yevhenii Bohodaiko  Ukraine	Yang Hong  China
SB7	Carlos Serrano Zárate  Colombia	Egor Efrosinin  Russia	Blake Cochrane  Australia
SB8	Andrei Kalina  Russia	Oscar Salguero Galisteo  Spain	Tim van Duuren  Netherlands
SB9	Stefano Raimondi  Italy	James Leroux  Canada	Dmitrii Bartasinskii  Russia
SB11	Yang Bozun  China	Rogier Dorsman  Netherlands	Keiichi Kimura  Japan
SB12	Oleksii Fedyna  Ukraine	Uladzimir Izotau  Belarus	Vali Israfilov  Azerbaijan
SB13	Taliso Engel  Germany	Firdavsbek Musabekov  Uzbekistan	Ihar Boki  Belarus
SB14	Naohide Yamaguchi  Japan	Scott Quin  Great Britain	Marc Evers  Netherlands