The White House confirmed Mr Trump will be among the NATO leaders attending the reception at Buckingham Palace.
In a statement, it said the president "looks forward" to the summit and will be emphasising the need for the alliance to combat cyber threats and terrorism.
The president has repeatedly expressed concerns that other countries are not putting enough funding into the military alliance.
The December summit will mark 70 years of the NATO alliance and is being hosted the week before the UK goes to the polls for a snap general election.
Leaders will attend the reception hosted by the Queen on 3 December before meeting to discuss security challenges the following day.
NATO Security General Jens Stoltenberg says the summit aims to "ensure that NATO continues to adapt in order to keep its population of almost one billion people safe".
