Four skeletons believed to date back to the Iron Age have been found been on the Olympic Park site in Stratford.
The remains, thought to be about 3,000 years old, were discovered in graves close to where the aquatics centre is being built.
Museum of London archaeologists have now completed digs at the sites of the five main Olympic venues.
The four skeletons were discovered in separate graves in a cemetery within an Iron Age settlement.
Experts searching the area have previously uncovered a Roman coin, Roman river walls, World War II gun emplacements and a complete 19th Century boat used for hunting wild fowl on the lower River Lea.
The aquatics centre will be situated beside the river, which is currently being widened by eight metres (8.7 yards) as part of a programme to restore the ancient waterways of the Lower Lea Valley.
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