Elrick, who joins from Ogilvy & Mather Singapore, replaces Stanley Wong.
Wong left the agency to join TWBA Hong Kong as creative director.
At O&M, Elrick was executive creative director, having joined the agency as creative director four years ago from Bates Worldwide, Hong Kong. He has also spent time with TBWA Chiat/Day in Los Angeles, where he was associate creative director.
BBH Asia Pacific was set up in Singapore in 1996 and its clients include Levi-Strauss, CNBC Asia, Tag Heuer, Polaroid and Cerebos.