拉兹洛格是保加利亚的城镇，位于该国西南部，距离首都索菲亚145公里，由布拉格耶夫格勒州负责管辖，海拔高度812米，2009年人口13,448，居民主要信奉东正教。

Razlog (Bulgarian:Разлог) is a town and ski resort in Razlog Municipality, Blagoevgrad Province in southwestern Bulgaria. It is situated in the Razlog Valley and was first mentioned during the reign of Byzantine emperor Basil II.

During his 1894–1896 trip in the region of Macedonia, Bulgarian geographer Vasil Kanchov visited Razlog (then known as Мехомия, Mehomiya) and reported that it numbered 820 households, of which 500 of Eastern Orthodox Bulgarians, 300 of Muslim Bulgarians (Pomaks), 16 of Protestant Bulgarians and 5 of Eastern Orthodox Aromanians, for a total population of around 4,620. According to the same author's 1900 study on the population of Macedonia, Razlog was populated by 4,970 people, of which 3,200 Christian Bulgarians, 1,460 Muslim Bulgarians, 80 Turks, 200 Romani and 30 Aromanians.