Harrison Sullivan, also known as HSTikkyTokky, missed his court date after allegedly crashing a McLaren supercar in Virginia Water, Surrey, in March.
Police said the 23-year-old has links to Essex but is thought to have left the country.
“While we request the public’s help to locate him, we are making a direct appeal to Sullivan to return to the UK and cooperate with authorities,” said Surrey Police.
Some of Sullivan’s TikTok videos have over a million views and his recent clips appear to show him in Qatar for Thursday’s Misfits boxing event.
Sullivan was meant to compete against Masai Warrior but withdrew at short notice after reportedly injuring his shoulder.
Co-founded by social media star KSI, the promotion pairs up influencers and celebrities in the ring.
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People with information can contact police and quote PR/45240033550, or get in touch anonymously via Crimestoppers on 0800 555 111.