Jasionówka ([jaɕɔˈnufka], Belarusian: Ясяноўка, Yiddish: יאַשינעווקע, romanized: Yashinovka) is a village in Mońki County, Podlaskie Voivodeship, in north-eastern Poland.

It lies approximately 16 kilometres (10 mi) east of Mońki and 33 km (21 mi) north of the regional capital Białystok.

Jasionówka had 1,154 Jewish residents in 1897, and 1,306 in 1921.

Nearly all of them were murdered by the Germans in World War II.

This Mońki County location article is a stub.