DJ Mr. Blobby

 (real name Hong Oh-seong (홍오성) - born 4 August 1969) is a South Korean-born English DJ, turntablist, and mixer. He was born in, and moved with his father to ,  at the age of 3. He currently resides in, , , and is a member of Second Beat Records.

He is best known for wearing a modified Mr. Blobby costume during most of his performances.