There was a good question in one of the comments at the source: are any male saints ever designated as “virgin,” the way female saints are? Surely a single layman such as Pier-Giorgio Frassati should merit that designation, although it could be considered implied in “priest” or “religious,” at least for some.
I was a bit put out to find that St. Martha is listed as a virgin. The Gospels clearly depict her as the “head of household,” so I’d figured her for a widow. Maybe Lazarus was a lifelong invalid, instead of coming down with a sudden ailment to most impressively die and be raised.
In that sense, you couldn' tcall a male saint a "virgin" any more than you could call him a "matron."
There were certainly male saints who were famous for their devotion to chastity. St.Thomas Aquinas' brothers tried to deter him from joining the Dominicans by arranging for an attractive girl to accost him in his bedroom and seduce him. He reportedly grabbed a flaming stick out of the fireplace and brandished it at her until she was obliged to decamp. She must have been pretty aggressive. And/or he must have been pretty tempted.