The Tachinidae of America north of Mexico have undergone extensive changes in nomenclature since the last catalogue was produced in 1965. Many of these changes were published in the Tachinidae chapter of Manual of Nearctic Diptera, but few of the changes in that work were explicitly stated and none was recorded in Zoological Record. These changes, which included a new genus, new records for America north of Mexico, new generic synonymies, and hundreds of new combinations (including extralimital species), are documented here. This paper also includes more than 30 nomenclatural changes proposed as new herein by the junior author (primarily for America north of Mexico), representing new generic and specific synonymies and new combinations. A new record for America north of Mexico is reported.