An Ad Group is a set of ads within a campaign that share similar targeting and objectives. In platforms like Google Ads, ad groups help organize campaigns by dividing ads based on themes, keywords, or audience segments. This setup allows advertisers to test variations and identify high-performing elements.

Using ad groups streamlines campaign management, as ads can be tailored to specific audience interests. By customizing creative and targeting within each group, marketers can improve relevance, engagement, and conversion rates, making ad groups an essential part of digital campaign strategy.