The Fandom Post is reporting that Netflix will be adding the Dorohedoro OVA to its service on October 15, 2020. While the language availability isn’t currently known, it’s being assumed that it will be same as the language availability for the 12-episode Dorohedoro television anime series. For the TV anime, Netflix has released it in its original Japanese language while also adding English and Thai dubs. Subtitles are offered for English, Spanish, Simplified Chinese, and Traditional Chinese.
Netflix added the Dorohedoro television anime series to its service worldwide on May 28, 2020. The series premiered on Netflix in Japan on January 12, 2020.
Source: The Fandom Post