巴特奥尔德斯洛（Bad Oldesloe， [ˌbatˀɔldəsˈloː] ），是德国石勒苏益格-荷尔斯泰因州的施托尔曼县县城。

巴特奥尔德斯洛有以下姐妹和友好城市：

•  以色列 (Israel)
•  法国 (Frankreich)
•  波兰 (Polen)

Bad Oldesloe is a town located in the northern German state of Schleswig-Holstein. It is the capital of the Kreis Stormarn (district).

The area has been inhabited since mesolithic times. The flint tools found here from that era (6,000 - 4,500 B.C.) are clearly defined and known as the Oldesloer Stufe. For a number of years in the 18th Century the Moravian Church had a Congregation in Bad Oldesloe. It was called "Pilgerruh", i.e. "Pilgrims' Rest". It was given up because of difficulties with the Danish Church authorities. At that time, the Duchy of Holstein was ruled by the kings of Denmark within the Holy Roman Empire. The famed nineteenth-century classicist and legal scholar Theodor Mommsen was born in Bad Oldesloe in 1817.