The Wiki Science Competition (WSC) is a global science photography competition for students, researchers, and others to contribute freely licensed high-quality, well-sourced images and other media to Wikimedia Commons.

The first global competition took place in 2017[5] and is held every two years,[6] occurring for most countries around November or December.

The first competition saw participation from over 2,200 contestants, with the number of images exceeding 10,000.

[5] Media are evaluated based on the detail of their description, with sources from high-impact journals, datasets, and other reliable third-parties being prioritized.

This incentivizes expert-driven contributions backed by verifiable materials.