Grajewo (pronounced [ɡraˈjɛvɔ], Yiddish: גראיעווע, romanized: Grayavah) is a town in north-eastern Poland with 21,499 inhabitants (2016). It is situated in the Podlaskie Voivodeship (since 1999); previously, it was in Łomża Voivodeship (1975–1998). It is the capital of Grajewo County. It is located within the historic region of Masovia, near the border with Podlachia and Masuria.