Mark Harmon has just gone public with his new girlfriend, and fans are absolutely stunned! The beloved NCIS legend, known for keeping his personal life fiercely private, was spotted arm-in-arm with a mystery woman during a rare public outing. Witnesses say the two looked completely smitten, exchanging smiles and laughter as they walked together through Los Angeles. For years, Harmon has avoided the spotlight outside of his acting career, making this new relationship reveal even more shocking for