OC Queen Street LLC is a Singapore law practice established in 2016 and a member of Osborne Clarke's international legal practice.

It is a leading law firm in the digital business sector in Singapore. Chambers Fintech 2020 described the firm as "a modern firm with technology-savvy lawyers. Clients with disruptive business models are drawn to the firm’s understanding of and dedication to innovative technologies".

Clients have given strong praise with Chambers Fintech reporting that Managing Director, Koh Chia Ling is "one of the top IT lawyers in Singapore”, Legal 500 client feedback stating that Director Irving Aw is “one of the foremost legal minds in the Singapore tax scene”, and Chambers praising Banking Consultant Valerie Kwok’s ability to solve “mind-boggling legal, commercial and administrative challenges”