Star Wars: The Old Republic - Onslaught is the seventh Digital Expansion to Star Wars: The Old Republic.

Onslaught introduces new quest areas in the new Onderon and Mek-Sha areas, as well as a new flashpoint on Corellia, and an operation on the jungle planet of Dxun. Subsequent updates brought a small expansion to the story, a brand new stronghold on the planet Alderaan and a new recurring event for swoop racing called the All Worlds Ultimate Swoop Rally. Even more was added later with a new annual event; The Feast of Prosperity, a cooking event, a servant droid mini-game, a new flashpoint named "The Spirit of Vengeance" exploring the Mandalorians' story, the main story quest titled "Echoes of Oblivion", and the flashpoint "Secrets of the Enclave".

With a later update, old cutscenes from the base game Star Wars: The Old Republic were also revamped and improved, and new Login Rewards as well as Galactic Seasons were introduced.