WASHINGTON — First son Hunter Biden’s novice artwork has raked in at least $1.3 million — with buyers including a Democratic donor “friend’’ who his dad named to a prestigious commission, a report said Monday.

Elizabeth Hirsh Naftali, a Los Angeles real-estate investor and philanthropist, bought one of Hunter’s works, according to Business Insider.

It wasn’t clear when the sale occurred or how much Naftali paid for the piece.

But she was appointed by the president to the Commission for the Preservation of America’s Heritage Abroad in July 2022 — about eight months after Hunter’s first gallery opening in SoHo in Manhattan.

Business Insider said the largest chunk of sales so far have gone to a deep-pocketed single mystery buyer — who scooped up 11 artworks for a total of $875,000.

House Republicans are investigating Hunter Biden’s prior business dealings with international business associates from countries such as China and Ukraine, where his father held sway as vice president, and have expressed concern about Hunter’s art career being a possible new avenue for influence-peddling.

The White House and Hunter Biden’s legal team did not immediately respond to requests for comment from The Post.