Ma Jian may refer to:
Muhammad Ma Jian (马坚, 1906–1978), Chinese Confucian scholar and Islamic jurist Ma Jian (writer) (马建, born 1953), Chinese writer Ma Jian (politician) (马建, born 1956), former Vice Minister of State Security of China Ma Jian (basketball) (马健, born 1969), Chinese basketball player and occasional actor Jian Ma (computational biologist) (马坚), American computational biologist