Lookalike Audience
Also known as: Lookalike, Similar audience
A lookalike audience is a new audience the ad platform builds to resemble your existing customers or engaged users, to find similar prospects.
A lookalike audience lets platforms like Meta find new people who share traits with a source group (buyers, leads, engagers). It’s a powerful way to scale beyond retargeting while keeping relevance higher than broad targeting. Feed it your best-customer data for the strongest results.