Where to Find and Catch Unown
From Pokemon Go Wiki
Unown are found and captured in Nest and Habitat locations.
Nests
Unown Nests are locations that consistently spawn Unown.
Habitats
Unown Habitats are spawn locations where Unown is likely to be encountered, but not guaranteed the way a Nest is.
Additional Tips and Information
Best Nests
If you know a really good nest or any of the nests above is really good, list them here:
