Membership in the Catholic War Veterans is open to baptized Catholics, male or female, who have served on Active Duty for a period of at least 90 days, in the Reserve Component, or National Guard, or are curently on Active Duty in any branch of the US Armed Forces.

Membership in the CWV Auxiliary is open to any baptized Catholic, male or female, related to a veteran within 2 degrees (Spouse, Grandfather, Grandmother, Mother, Father, Brother, Sister, Uncle, Aunt, Son or Daughter).