Barrymore — Family Name, Records and Arms
The Barrymore last name has English roots. Elsdon Smith's dictionary of American family names explains it as “dweller at the woodland marsh. -”.
Landscape names of this kind told neighbours where a family's house stood.
Heraldry follows families, not surnames. A Barrymore coat of arms, where one exists, belonged to a specific line. Research your Barrymore family history with a full surname report and painted coat of arms.