The 2021 Chainalysis Global Crypto Adoption Index shows a significant increase in worldwide adoption, with over 88% growth from the previous year. The index aims to measure grassroots cryptocurrency adoption globally, focusing on transactions and individual savings rather than trading and speculation. The index methodology has changed from the previous year to provide a more objective measure of countries with the highest levels of cryptocurrency adoption. The top ranked countries for cryptocurrency adoption are shown, along with interesting trends identified.