Kayla Malvina Johnson (née Cullen, born 13 February 1992) is a New Zealand netball player. As a high school student, Cullen played representative netball and basketball, and competed at a national level in athletics. In 2008, she was selected in the New Zealand U21 netball team, and was a member of the side that finished second at the 2009 World Youth Netball Championships, behind Australia.