Trevor Arthur Holder, (born May 8, 1973 in Saint John, New Brunswick, Canada) is a New Brunswick politician. He is currently a member of the Legislative Assembly of New Brunswick representing the electoral district of Portland-Simonds and a government MLA, additionally he is currently the longest serving member of the legislative assembly, unusual as most of the longest serving members in a legislative body tend to be much older. A 1995 graduate of the University of New Brunswick in Saint John, he earned a Bachelor of Arts in political science and history.