| Phaseolus schaffneri Piper, 1926 |
| Phaseolus schiedeanus Schltdl., 1838 |
| Phaseolus schottii Benth., 1837 |
| Phaseolus scolecocarpus Piper, 1926 |
| Phaseolus scrobiculatifolius Freytag, 2002 |
| Phaseolus seleri Harms, 1921 |
| Phaseolus sempervirens Piper, 1926 |
| Phaseolus sonorensis Standl., 1940 |
| Phaseolus speciosus Kunth, 1824 |
| Phaseolus speciosus Bojer ex Benth., 1837 |
| Phaseolus spectabilis Standl., 1914 |
| Phaseolus sphaericus Savi, 1825 |
| Phaseolus stenolobus Standl., 1914 |
| Phaseolus striatus Brandegee, 1908 |
| Phaseolus strigillosus Piper, 1926 |
| Phaseolus strobilophorus (B.L. Rob.) C.V. Morton, 1944 |
| Phaseolus subovallatus Schltdl., 1838 |
| Phaseolus superbus A. DC., 1836 |
| Phaseolus supinus Wiggins & Rollins, 1943 |
| Phaseolus sylvestris Kunth, 1823 |