The Lembang Fault (Indonesian: Sesar Lembang) is an active fault located 10 km north of the city of Bandung on the Indonesian island of Java.

This sinistral slip fault is estimated to measure 29 km in length.

[2] Because of the potential for large and damaging earthquakes on the fault, the Meteorology, Climatology and Geophysics Agency (BMKG) has been monitoring activity on the fault.

[3] Paleoseismic trenching along the fault in a 2019 study uncovered three earthquakes in the 15th century, 2300–60 BCE and 19,620–19,140 BP with a recurrence interval of 170 to 670 years.

[2] The Indonesian Institute of Sciences has urged that the Government of Indonesia educate the residents in nearby population centers about the dangers of a damaging earthquake on the fault.