The House passed the legislation day by voice vote, about four months after the measure cleared the Senate despite vehement objections from Saudi Arabia.
Fifteen of the 19 hijackers were Saudi nationals.
The White House has signaled Obama would veto the legislation over the potential for the measure to backfire.
The Obama administration cautions that if US citizens can take the Saudis to court, then a foreign country could in turn sue the United States. There also is apprehension the bill would undermine a longstanding yet strained relationship with a critical US ally in the Middle East.
Also Read
There was no immediate comment from Saudi Arabia, which was preparing for the annual hajj pilgrimage beginning tomorrow.
The legislation gives victims' families the right to sue in US court for any role that elements of the Saudi government may have played in the 2001 attacks that killed thousands in New York, the Washington, D.C., area and Pennsylvania.
Rep Ted Poe, R-Texas, said the US government should be more concerned about the families of the victims than "diplomatic niceties."
Poe said he doesn't know if the Saudi government had a role in the attacks that killed more than 3,000 people.
House Speaker Paul Ryan, R-Wis, led a moment of silence on the Capitol steps, and lawmakers sang "God Bless America" in remembrance of 9/11, when lawmakers gathered in the same location to sing the song immediately after the attacks on New York and Washington.
The Justice Against Sponsors of Terrorism Act had triggered a threat from Riyadh to pull billions of dollars from the US economy if the legislation is enacted.
But Saudi Foreign Minister Adel bin Ahmed Al-Jubeir denied in May that the kingdom made any threats over the bill. He said Riyadh had warned that investor confidence in the US would shrink if the bill became law.
The House vote came two months after Congress released 28 declassified pages from a congressional report into 9/11 that reignited speculation over links at least a few of the attackers had to Saudis, including government officials. The allegations were never substantiated by later US investigations into the terrorist attacks.
Disclaimer: No Business Standard Journalist was involved in creation of this content