Czechoslovakia No Longer Exists: Split in 1993

There is no country called Czechoslovakia. It peacefully dissolved on January 1, 1993 into two independent states:

• Czech Republic (now also Czechia)
• Slovakia

In Czech, "Anthony" is Antonín (diminutive: Anto, Toník).
In Slovak, it's Anton (diminutive: Anto, Tóno).

If you need the name for a specific context (genealogy, fiction, legal), specify which successor state and era.