Western Moldavia, also called Romanian Moldavia, or simply just Moldova is the core historic and geographical part of the former Principality of Moldavia situated in eastern and north-eastern Romania. Until its union with Wallachia in 1859, the Principality of Moldavia also included, at various times in its history, the regions of Bessarabia, all of Bukovina, and Hertsa; the larger part of the former is nowadays the independent state of Moldova, while the rest of it, the northern part of Bukovina, and Hertsa form territories of Ukraine.

Moldavia is a historical region and former principality in Central and Eastern Europe, corresponding to the territory between the Eastern Carpathians and the Dniester River. An initially independent and later autonomous state, it existed from the 14th century to 1859, when it united with Wallachia as the basis of the modern Romanian state; at various times, Moldavia included the regions of Bessarabia, all of Bukovina and Hertsa. The region of Pokuttya was also part of it for a period of time.