Ruler of Your Own World (Korean: 네 멋대로 해라; RR: Ne Meottaero Haera; lit. 'Do As You Wish') is a 2002 South Korean television series starring Lee Na-young and Yang Dong-geun. It was written by In Jung-ok and directed by Park Sung-soo.

The series was praised by critics for its realism, strong acting, and refusal to rely on K-drama conventions. While its viewership ratings were considered moderate, the series garnered a fervent fanbase, and the home video release of the series saw record-breaking DVD sales for a South Korean production.