Hi My Sweetheart (Chinese: 海派甜心; pinyin: Hai Pai Tian Xin) is a 2009 Taiwanese drama starring Show Lo, Rainie Yang and Lee Wei. It was produced by Comic Ritz International Production (可米瑞智國際藝能有限公司) and Chai Zhi Ping (柴智屏) as producer and directed by Lin He Long (林合隆). It started filming on 26 July 2009 and wrapped on 23 November 2009. It was filmed in Kaohsiung, Taiwan and Hangzhou, China.

The series was first broadcast in Taiwan on free-to-air Chinese Television System (CTS) (華視) from 1 November 2009 to 31 January 2010, every Sunday at 22:00 to 23:30 and cable TV Gala Television (GTV) Variety Show/CH 28 (八大綜合台) on 8 November 2009 to 7 February 2010, every Sunday at 20:00 to 21:30.

The 23 episode series follows the romance between Xue Hai and Chen Bao Zhu, beginning from their college days until their late 20s.

Hi My Sweetheart was nominated in 2010 in five categories at the 45th Golden Bell Awards, including Best Television Series and Best Actor for Show Lo. Rainie Yang who portrayed Chen Bao Zhu in the drama, won Best Actress at the award ceremony in October.