Si Joval District () is in Torkaman County, Golestan province, Iran. Its capital is the city of Si Joval.
In 2009, villages were separated from the Central District in the formation of Si Joval District. The village of Si Joval was converted to a city in 2020.
At the time of the 2011 census, the district's population was 12,433 in 3,042 households. The 2016 census measured the population of the district as 13,458 inhabitants in 3,559 households.