Megachile simonyi
{{short description|Species of leafcutter bee (Megachile)}}
{{speciesbox
|taxon=Megachile simonyi
|authority=Friese, 1903}}
Megachile simonyi is a species of bee in the family Megachilidae.{{cite web|url=https://www.biolib.cz/en/formsearch/?action=execute&searcharea=1&string=megachile|title=Megachile|year=2014|work=BioLib|accessdate=18 October 2014}} It was described by Heinrich Friese in 1903.
It is found in Yemen and Eritrea. The specific name is named after {{ill|Oskar Simony|de}}, who discovered one of the syntypes in Ra's Fartak, Yemen.
The male is {{convert|13|–|14|mm|abbr=on}} long and {{convert|4|–|4.5|mm|abbr=on}} wide; the female is {{convert|11|mm|abbr=on}} long and {{convert|4|mm|abbr=on}} wide.