Also known as A with diaeresis and macron, A with diaeresis and macron (Cyrillic)
Cyrillic letter
In the Vinony graph
Vinony's link graph records 278 inbound references to Ӓ̄, and connects out to Я, Cyrillic script and yus.
It sits within the topics Cyrillic letters with diacritics and Letters with diaeresis.
Vinony links it to 8 Wikipedia language editions.