Barbara Walters was married four times and thus had three different husbands as per Wikipedia.
She firstly tied the knot with a former Navy lieutenant, Robert Henry Katz in 1955. Later, after almost 10 years of marriage, she divorced and married her second husband Lee Guber, a theatrical producer and theater owner in 1963.
Likewise, Walters’s next or third husband was the CEO of Lorimar Television, Merv Adelson.