The JL-2 (Chinese: 巨浪-2; pinyin: Jù Làng-2; literally "Giant Wave 2") is a Chinese second-generation intercontinental-range submarine-launched ballistic missile (SLBM) which has a two-stage, solid–liquid-fuelled propulsion design. Accurate specifications of the new missile are hard to obtain and substantiate due to the secretive nature of the program. However, the missile is thought to be able to deliver its payload(s) up to a range of 8,000 km (5,000 mi) and can carry either single or multiple warheads (conventional or nuclear).

JL-2's design is based on the mobile land-based DF-31 ballistic missile. As such, it shares many features of DF-31 missile such as its operational range. There has been a debate among Western analysts on whether the JL-2 missile is capable of carrying multiple warheads (MIRVs) because China has never fielded any submarine-based MIRVs before. Most analysts within the U.S. intelligence community believe that the missile can carry only a single warhead (conventional or nuclear). Other analysts such as Jane's Defence asserted that the missile can deliver 3 to 4 MIRVs, each with a yield of 90 kt or a single warhead of 25 to 1,000 kt yield. The JL-2 SLBMs are carried on the new Chinese Type 094 (Jin-class) submarine. It replaces the earlier first-generation JL-1 SLBM which were primarily deployed by the older Type 092 (Xia-class) nuclear submarine.