2021 Duolingo Language Report

See what’s trending based on data from over 500 million Duolingo learners worldwide.

The 2021 Duolingo Language Report presents the latest language trends and learner behaviors based on data from over 500 million Duolingo learners around the globe. Duolingo is the world’s most downloaded education app, and we offer over 100 courses teaching 40 languages—all for free. As a result, our data offers unique insights into what languages learners worldwide want to study and how their interests change over time and geography.

The results of the 2021 Duolingo Language Report clearly show that learners continue to turn to languages to build bridges with cultures and people, across distances we can’t quite traverse in person—yet.

For learners around the world, 2021 wasn’t the return-to-normal we had been envisioning since the start of the COVID-19 pandemic. It’s no surprise that Duolingo’s Most 2021 Phrase was “I am mentally exhausted.” Much of the globe continued to cycle through stay-at-home orders, delayed return-to-office plans, and ever-changing health policies—but the year was not without bright spots, including vaccines, the Olympics and UEFA Euro tournament, and plenty of captivating TV.

And for millions of people, language learning was another bright spot. In 2020, the Duolingo Language Report noted record growth of new learners who started studying a language during the pandemic, whether to keep up with schoolwork or connect with people around the world. This year’s report investigates how those patterns have evolved in 2021.

Love for Asian languages continues to grow around the globe

In 2021, Asian languages—especially Japanese and Korean—attracted learners worldwide, building on the impressive growth observed in 2020.

• Japanese surpassed Italian globally to become the 5th most popular language to study, and it’s the fastest-growing language in the U.S. and U.K.
• Korean—holding strong at the 7th most popular language to study around the world—is the fastest-growing language in Brazil, France, Germany, India, and Mexico, and it ranks as the second-fastest growing language in Japan!
• Chinese, which was the 10th most popular language to study in 2020, has overtaken Russian and Portuguese for the 8th spot worldwide. It is also one of the top 5 fastest-growing languages in Mexico and Brazil.

The growth of interest in studying Asian languages shows no signs of slowing. The world is tuning in to more Korean and Japanese entertainment, listening to more K-pop, and reframing language study as something you do to complement and support your interests and other activities—not just something required of you in a classroom.

World interest in under-studied languages increases—again!

Learners around the world want to study a wider variety of languages than have traditionally been available to them. School districts and universities may be slashing language courses and funding, but our data shows that learners are more interested in studying languages for personal, cultural, and entertainment reasons—which has led them to study more diverse languages.

English, Spanish, and French remain the most popular languages to study globally, but when we look at the languages studied in individual countries, we see that more languages than ever before have reached the #1 spot: in 2021, 10 languages made the list of most popular to study by country, up from 8 languages in 2020 and 7 in 2016.

Family and culture drive learners to study new languages

COVID-19 continues to stifle travel plans in most parts of the world, so learners are thinking less about languages to use on the road and instead are studying for reasons closer to home: to connect with the family, friends, and cultures that have kept them going through nearly two years of pandemic precautions.

Family and culture have become important motivators for language study, and this is especially true for learners studying Asian languages. For example, over 18% of new learners studying Japanese are motivated by culture; in contrast, only 8% of English learners, 9% of Spanish learners, and 10% of French learners in 2021 chose culture as their primary reason for language learning.

Language learning highlights from around the world

There’s even more to uncover in our data about how interests in languages grow and change over time. Below are some other notable findings from around the world.

• Top 10 languages studied around the world (in order): English, Spanish, French, German, Japanese, Italian, Korean, Chinese, Russian, Portuguese.
• In 2021, the hardest-working countries were (in order): Czechia, Japan, Belarus, Germany, and Hungary. These are the countries that complete the most lessons per learner.
• Like the rest of the world, Brazil is excited to study Japanese and Korean: Japanese is the fastest-growing language in Brazil, and Korean is 4th—reversing the 2020 order, which had Korean ahead of Japanese.
• The fight for Australia continues: French was the most popular language to study there in 2016, ahead of #2 Spanish, but Spanish pulled ahead to #1 in 2020. This year, French is back on top.
• U.S. and French learners are examples of this global trend. In just one year, family has overtaken school and brain training to become the top motivator for new U.S. learners. For French learners, culture and family have both grown as reasons to study, while travel continues to be grounded.

About the data

The 2021 Duolingo Language Report includes information about learners who studied languages on Duolingo between October 1, 2020 and September 30, 2021. The data was aggregated by country or by language to ensure learner privacy. Country aggregations are based on internationally-recognized, independent, self-governing entities as outlined here. Also to the end of protecting learner privacy, rankings exclude countries where there are fewer than 5,000 Duolingo learners.