The study examines leadership styles (LS) and growth of selected Pentecostal churches in Port Harcourt, Rivers State Nigeria. Task-centred (TCL) and people-centred style (PCL) was related to church growth. The population comprises the 756 employees of 15 Pentecostal churches in Port Harcourt, Rivers State, Nigeria. 254 sample size was determined with Krejcie and Morgans’ (1970) table. The sample subjects were got through Simple Random Sampling technique. Spearman’s rank order correlation coefficient was used for the hypothetical statements. A significant and positive relationships exist between leadership styles and church growth. The study concludes that leadership relate to church growth and recommends usage of both task centre and people centred leadership styles.