Jeremy Corbin declined an invitation to state dinner with "misogyny" Donald Trump when he visited Britain in June.
The veteran leftist is the latest in a number of politicians skipping the US president, including Communist President John Berkow and Liberal Democrat leader Vince Kabel.
Mr Corbyn claimed "splendor and ceremony" of the official visit to the state was not needed and criticized Teresa May, who said he "re-decided to join this US administration".
The labor leader said: "Teresa May does not need to highlight the red carpet for a state visit to pay tribute to a president who flares up vital international agreements, supports the denial of climate change and uses racist and misogynistic rhetoric.
"Maintaining an important relationship with the United States does not require a pomp and a state visit ceremony. It is disappointing that the prime minister has again decided to join this US administration.
"I would like to meet President Trump to discuss all matters of interest."
A spokeswoman for the president's office said: "Mr. Speaker is invited to a banquet, but he will not attend."
Mr. Trump's visit should be held from June 3 to June 5.
The White House already confirmed that the President would meet the Queen and hold talks with Ms. May.
Mrs. Mai and Mr. Trump will then attend the Day of the Day events in Southampton, Portsmouth, before going to Normandy for further commemorative events.
Such occasions often include the head of state addressing both houses of parliament, but Mr Berkow in 2017 stated that Mr Trump should not be allowed to make a formal address.
Mr Trump held talks with the Prime Minister when he worked on a UK visit last year
Lord Fowler, Berkov's colleague in the House of Lords, said there is a "strong case" to give such honor to the American president.