Jizhou District (), formerly a county known as Ji County, is a district in the far north of the municipality of Tianjin, People's Republic of China, holding cultural and historical significance (e.g., the Buddhist Temple of Solitary Joy).
The administration of Jizhou was transferred from Hebei province to Tianjin in 1973. Historically, it was also known as Yuyang () during the Tang dynasty.
Jizhou is the only mountainous area in the Tianjin municipality, home to the renowned Mount Pan. Known as "Tianjin's backyard", the spectacular natural scenery and numerous historical monuments, including a small section of the Great Wall known as Huangyaguan, in the county means that it is a major tourist attraction. It is also well known for its abundance of unique, local fruits and nuts.
Jizhou is approximately away from the city proper of Tianjin. It has an area of and a population of 800,000.
There are 1 subdistrict, 25 towns, and 1 ethnic township in the county: