| Buffie McFadyen | |
| Office1: | County Commission of Pueblo County, Colorado |
| Term Start1: | 2013 |
| Term End1: | 2017[1] |
| State House2: | Colorado |
| District2: | 47th |
| Term Start2: | January 8, 2003 |
| Term End2: | January 12, 2011 |
| Succeeded2: | Keith Swerdfeger |
| Party: | Democratic Party |
| Birth Place: | Buffalo, New York |
| Alma Mater: | Adams State College (M.A.) |
| Residence: | Pueblo West, Colorado |
Liane "Buffie" McFadyen is an American politician who served as a state legislator in the state of Colorado.
Originally from Buffalo, New York, she moved to Alamosa, Colorado to attend Adams State University.
She served the limit of four terms as a representative in the Colorado House of Representatives, where she was the Speaker pro tem.
A member of the Democratic Party, McFadyen is a former member of the County commission of Pueblo County, Colorado, serving from 2013 to 2017. She filed to run for the 3rd District seat in Congress in 2014 but stepped aside that March in favor of former state Senator Abel Tapia.[2]