Lying Long Island Rep. George Santos’ father and aunt were revealed Thursday as the secret bail backers who put up the embattled Republican’s $500,000 bond in his criminal fraud case.

Gercino Dos Santos and Elma Santos Preven were revealed as the suretors for the bond after the document was unsealed by US District Judge Joanna Seybert.

Santos’ lawyers had argued the congressman’s relatives would be subject to “attacks and harassment” if their identities were made public.

Santos was arrested last month and charged with several crimes, including embezzling $50,000 in campaign money to buy designer clothing and pay personal expenses, lying to Congress about his income, misrepresenting himself to donors and cheating his way to COVID unemployment benefits.

The 34-year-old pleaded not guilty to the 13-count indictment at his first appearance in Central Islip federal court.