Alfred L. Buchan (March 4, 1847 – February 17, 1905) was an American physician and politician serving in the Wisconsin State Assembly.
Born in what is now the town of Dover, Racine County, Wisconsin, Buchan received his Master of Arts degree from Monmouth College and then graduated from Rush Medical College and Bellevue Hospital and College.
In 1889, Buchan served in the Wisconsin State Assembly as a Republican.
Buchan died of cancer in his home in Dover, Wisconsin.
This article about a Republican Party member of the Wisconsin State Assembly born in the 1840s is a stub.