The study investigates the relationships among the knowledge sharing of elementary school teachers in a professional learning community, the transformational leadership of the community coordinator, and teachers’ creative teaching. Using researcher-developed questionnaires, the study adopted a survey research design to collect data from a valid sample of 546 teachers. They are public school teachers in Tainan City who are members of a teachers’ professional learning community, belonging to teacher evaluation and professional development projects supported by the Minister of Education in 2015. The study revealed that knowledge sharing among teachers in the professional learning community is positively related to their creative teaching. Similarly, the transformational leadership of the community coordinator is positively related to teachers’ creative teaching. Findings also presented that the transformational leadership of the community coordinator is a crucial moderator between the knowledge sharing of teachers in the professional learning community and their creative teaching.