There is no definitive answer to this question as it largely depends on how you define a ‘sports team’. For example, if you include all amateur and professional teams, then the number would be significantly higher than if you only counted professional teams. According to one estimate, there are over 12 million sports teams in the world, although this figure is likely to be an overestimate.
If we focus just on professional teams, then the number is still difficult to determine precisely. However, one source estimates that there are around 30,000 professional sports teams globally across all disciplines. This includes everything from major leagues such as the NFL and Premier League, down to smaller regional or national leagues. So while we can’t give a definitive answer to this question, we can say that there are certainly thousands of professional sports teams in existence across the globe.