In 2018, 63 is the most common age for an American (U.S.) Walter who is registered male with the Social Security Administration. It is the 149th most common male first name for living U.S. citizens.
― Anonymous User 10/5/2018
5
Walter is also widely used in Italy, where it is pronounced VHAL-ter. [noted -ed]
Also Czech:
https://www.behindthename.com/name/walter/top/czech
https://cs.m.wikipedia.org/wiki/Walter_(jm%C3%A9no)