(born July 4, 1948) is an American attorney and diplomat who is currently serving as United States Ambassador to Australia.
He is the former Chair of O'Melveny & Myers, an international law firm of more than 1,000 lawyers with offices around the world.
Culvahouse also served as counsel to Ronald Reagan in the last two years of his presidency, and was entrusted by John McCain and Donald Trump to vet their vice presidential candidates.
On November 6, 2018, Culvahouse was announced to be the new appointment as the United States' Ambassador to Australia, a posting confirmed by the Senate on January 2, 2019.
He presented his credentials to the Governor-General of Australia, Sir Peter Cosgrove, on March 13, 2019.