Trump has been a CPAC regular, making his first appearance there in 2011, years before he became a presidential candidate.
Since leaving office Trump has given several TV interviews on friendly outlets and released public statements, but has yet to speak before an audience.
Trump is expected to play an active role in the 2022 midterm elections and has privately told people in recent days that he is weighing a 2024 comeback bid.
The conference is drawing several potential presidential candidates, including Florida Gov. Ron DeSantis and former Secretary of State Mike Pompeo.