| Don Kirkham | |
| Birth Date: | 11 February 1908 |
| Birth Place: | Provo, Utah |
| Death Place: | Ames, Iowa |
| Fields: | soil science |
| Spouse: | Mary Elizabeth (Betty) Erwin Kirkham |
| Alma Mater: | Columbia University |
| Workplaces: | Utah State University, Iowa State University |
| Doctoral Advisor: | Shirley Leon Quimby |
| Thesis Title: | The variation of the initial susceptibility with temperature and the variation of the magnetostriction and reversible susceptibility with temperature and magnetization in nickel |
| Thesis Year: | 1938 |
| Awards: | Wolf Prize in Agriculture (1983/4), Robert E. Horton Medal (1995) [1] |
Don Kirkham (February 11, 1908 – March 7, 1998) was an American soil scientist regarded as the founder of mathematical soil physics.[2] His special interest was the flow of water through soils and drainage of agricultural land. He was awarded the 1983/4 Wolf Prize in Agriculture and the Robert E. Horton Medal in 1995.