Tryphon’s name day is February 1, the feast of Tryphon.
Churches that follow the Old (Julian) Calendar keep the same feast on February 14 of the civil calendar. See everything commemorated on February 1.
The saint behind the name

Tryphon
February 1, Martyr, Τρύφων
St. Tryphon was born in the village of Campsada in Phrygia, in Asia Minor, where as a youth he tended geese. Endowed by God with grace to heal the sick and drive out evil spirits, he became known far beyond his village. During the persecution of Decius in the third century he confessed Christ, endured torture, and was condemned to death, receiving the martyr's crown while still young.
Also celebrating on February 1
These names share the feast, many of them other forms of the same name:
What to say on a name day
The Greek wish is Χρόνια Πολλά (Chronia Polla), “many years.” A call or a short message on the day is what people remember. See name day wishes you can send and what a name day is.