Mary K. Bryan

{{Short description|American botanist (1877–1926)}}

{{Infobox scientist

| name = Mary K. Bryan

| image = File:Mary Katherine Bryan.jpg

| caption =

| birth_date = February 13, 1877

| birth_place = Prince George's County, Maryland

| death_date = {{Death date and age|1962|02|22|1877|02|13}}

| death_place = Napa, California

| height =

| fields = Botany, Phytopathology

| years_active =

| author_abbrev_bot = Bryan

}}

Mary Katherine Bryan (February 13, 1877 – February 22, 1962) was an American botanist and phytopathologist.Harvey, Joy; Ogilvie, Marilyn (2000). The Biographical Dictionary of Women in Science: Pioneering Lives from Ancient Times to the Mid-Twentieth Century, Volume 1. Taylor & Francis, {{ISBN|9780203801451}} Much of her research involved leaf spots and cankers caused by bacteria.{{Cite journal| volume = 41| issue = 12| last = Bryan| first = Mary K.| title = Studies on bacterial canker of Tomato.| journal = Journal of Agricultural Research| accessdate = 2018-04-23| date = 1930| url = https://www.cabdirect.org/cabdirect/abstract/19311100833}}{{Cite journal| doi = 10.1126/science.63.1623.165| pmid = 17735959| issn = 0036-8075| volume = 63| issue = 1623| pages = 165| last = Bryan| first = Mary K.| title = Bacterial Leafspot on Hubbard Squash| journal = Science| date = 1926| bibcode = 1926Sci....63..165B}}