Jan Ching-an Ting (Chinese: 丁景安; pinyin: Dīng Jǐngān; born December 17, 1948) is a Professor of Law at Temple University in Philadelphia, Pennsylvania. He was the Republican nominee for U.S. Senator from Delaware in the 2006 U.S. Senate election, but two years later Ting left the Republican Party in a dispute over his endorsement of Democratic presidential nominee Barack Obama.