Ali Shams ol Din () is a neighborhood in the village of Baghak-e Jonubi in Baghak Rural District of the Central District in Tangestan County, Bushehr province, Iran.
At the time of the 2006 National Census, Ali Shams ol Din's population was 158 in 37 households, when it was a village in Baghak Rural District.
In 2010, the villages of Ali Shams ol Din, Bagh-e Salem-e Jonubi, Bagh-e Salem-e Shomali, Deh-e Now, Deh Kohneh, Jovey, Mal Barik, Rameh Char, Shamshiri, and Tokhmari merged to form the village of Baghak-e Jonubi.