The Western Balkans (Albania, Bosnia and Herzegovina, Kosovo, Montenegro, North Macedonia and Serbia) registered the main waves of COVID-19 infections later than most of the EU countries, but containment strategies were implemented at the same time and with equal force as in the rest of Europe. This report provides the main results of studies conducted using the trendspotter methodology to explore the impact of the pandemic and associated measures on drug services and people who use drugs in the Western Balkan region.