thumb|260x260px|[[Ukrainian Army's 71st Jaeger Brigade shoulder sleeve patch featuring a Simargl]]
thumb|A possible image of Simargl at the [[Boris and Gleb Cathedral, Chernihiv|Borysohlib Cathedral in Chernihiv]]
Simargl (also Sěmargl, Semargl) or Sěm and Rgel is an East Slavic god or gods often depicted as a winged dog,