Jalo Oasis (or Jalu, or Gialo) is an oasis in Cyrenaica, Libya, located west of the Great Sand Sea and about 250 km south-east of the Gulf of Sidra. Quite large, 19 kilometres (12 mi) long and up to 11 kilometres (7 mi) wide, it supports a number of settlements, the largest of which is the town of Jalu.