Râmnicu Sărat (also spelled Rîmnicu Sărat) is a city in Buzău County, Romania. It was declared a municipality in 1439. On December 21, 1994 it celebrated its 555th anniversary.
The city rises from a marshy plain, east of the Carpathians, and west of the cornlands of southern Moldavia. Salt and petroleum are worked in the mountains, and there is a considerable trade in agricultural produce and preserved meat.
Râmnicu Sărat was the scene of battles between the Wallachians and Ottomans in 1634, 1434 and 1573.
It was also here that, in 1789 (during the Russo–Turkish War of 1787–1792, an army of Imperial Russian and Habsburg troops, commanded by Alexander Suvorov, defeated the Ottoman forces in the Battle of Rymnik. For this victory, Suvorov was awarded the victory title of "Count of Rymnik" or "Rimniksky" (граф Рымникский) by empress Catherine the Great of Russia.
In 1854 the city was almost destroyed by fire and was rebuilt.