Fastest-growing Instagram hashtags worldwide 2021, by follower growth
In August 2021, the fastest-growing hashtag on Instagram was #onam, with people celebrating the annual Hindu festivity. The occasion, which is particularly felt in the state of Kerala, saw a 119.34 percent increase in people using the thematically connected hashtag on Instagram. The second fastest-growing hashtag on the Facebook-owned platform was #chadwickboseman, used by close to 100 percent more people in order to remember late actor Chadwick Boseman.