The 150-member Central Committee serves as the main decision making body of the Council between Assemblies.
Members were elected during a closed session at the Assembly currently taking place in Busan.
Ordained persons make up the largest group in the new Central Committee (68%). Just under a third (32%) are lay and 39 per cent are women.
The nominations committee worked with a pool of names put forward by the WCC's 345 member churches.
A 25-person executive committee, a moderator and two vice-moderators will be elected by the Central Committee later this week.