Some popular TikTok hashtags as of 2021 include:

sadekmiah30 January 30, 2023

Here some of popular 2021 hashtag:

#fyp

#fypシ

#fyppage

#fyprom

#tiktok

#viral

#challenge

#funny

#music

#dance

#cute

Note: TikTok's hashtags can change rapidly, and what is popular can vary by region and time.