| Kirk MacDonald | |
| Birth Date: | 8 August 1975 |
| Birth Place: | Stanley, New Brunswick |
| Assembly1: | New Brunswick Legislative |
| Constituency Am1: | Mactaquac |
| Term Start1: | June 7, 1999 |
| Term End1: | September 18, 2006 |
| Predecessor1: | David Olmstead |
| Successor1: | riding redistributed |
| Assembly2: | New Brunswick Legislative |
| Constituency Am2: | York North |
| Term Start2: | September 18, 2006 |
| Term End2: | September 22, 2014 |
| Predecessor2: | first member |
| Successor2: | riding redistributed |
| Assembly3: | New Brunswick Legislative |
| Constituency Am3: | Fredericton-York |
| Term Start3: | September 22, 2014 |
| Term End3: | September 24, 2018 |
| Predecessor3: | first member |
| Successor3: | Rick DeSaulniers |
| Party: | Progressive Conservative |
| Residence: | Nashwaak, New Brunswick |
| Occupation: | Mill Owner |
Kirk Douglas MacDonald is a former politician in the province of New Brunswick, Canada. Born in Stanley, New Brunswick, he earned a Bachelor of Business Administration degree from the University of New Brunswick in 1997. He was elected to the Legislative Assembly of New Brunswick in 1999 and re-elected in 2003, 2006 and 2010 and 2014.
He represented the electoral district of Fredericton-York and was a member of the cabinet as Minister of Business New Brunswick in 2006. He lost re-election in the 2018 election.