The Diptera genus-group names of Johann Wilhelm Meigen are reviewed, revised, and annotated. A total of 266 available genus-group names in 69 families of Diptera are listed alphabetically, including authorship, year and page of the original publication, originally included species, type species and method of fixation, current status of the name, family placement, and any emendations that have been found in the literature. Unavailable names suppressed by ICZN rulings as well as incorrect original and subsequent spellings are included as unnumbered entries. Remarks are given to clarify nomenclatural or taxonomic information. In addition, an index to all the species-group names of Diptera proposed by Meigen (3,117 in total, of which 2,966 are available) is given with a bibliographic reference to each original citation. An appendix gives a complete bibliography of all the known published writings by Meigen, non-zoological as well as zoological.