| Phaseolus acutifolius var. tenuifolius A. Gray, 1853 |
| Phaseolus adenanthus G. Mey., 1818 |
| Phaseolus affinis Piper, 1926 |
| Phaseolus albescens McVaugh ex R. Delgad. & A. Delgado, 1999 |
| Phaseolus albiflorus Freytag & Debouck, 2002 |
| Phaseolus albinervus Freytag & Debouck, 2002 |
| Phaseolus albiviolaceus Freytag & Debouck, 2002 |
| Phaseolus altimontanus Freytag & Debouck, 2002 |
| Phaseolus amabilis Standl., 1940 |
| Phaseolus amblyosepalus (Piper) C.V. Morton, 1944 |
| Phaseolus amplus Benth., 1844 |
| Phaseolus angulosus Ortega, 1797 |
| Phaseolus angustissimus A. Gray, 1853 |
| Phaseolus angustissimus var. latus Jones, 1913 |
| Phaseolus anisophyllus (Piper) Freytag & Debouck, 2002 |
| Phaseolus anisotrichos Schltdl., 1838 |
| Phaseolus anisotrichos subsp. incisus Piper, 1926 |
| Phaseolus appendiculatus Benth., 1837 |
| Phaseolus asper Benth., 1837 |
| Phaseolus atomiferus M.E. Jones, 1929 |