Pablo Martinez Monsivais/AP Photo

Former GOP presidential nominee Mitt Romney will be making his first public appearance since losing his presidential bid last November when he speaks at the Conservative Political Action Conference in March.

"I look forward to saying thank you to the many friends and supporters who were instrumental in helping my campaign," Romney said in a statement.

An advisor to Romney told ABC News the speech is "an opportunity for him to express his appreciation to supporters and friends."

American Conservative Union Chairman Al Cardenas said "the thousands gathered at CPAC this year are eager to hear" from Romney.

"We look forward to hearing Governor Romney's comments on the current state of affairs in America and the world, and his perspective on the future of the conservative movement," Cardenas said in a statement.

The gathering of conservative activists will be held in mid-March at the Gaylord National hotel in Prince George's County, Maryland.

This is not Romney's first time speaking at the conference. During his 2012 CPAC address Romney told activists in the audience that he was a "severely conservative Republican governor," which led to teasing from both sides of the aisle.

His 2008 CPAC speech was also memorable; it was then that Romney decided to end his first bid for the White House. John McCain became the 2008 GOP presidential nominee eventually losing to Barack Obama.

The news of Romney's speech was first reported by National Review Online.

ABC News' Emily Friedman contributed to this report.