Zephaniah or Tzfanya is the name of several people in the Bible

Bible

The Bible refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books , their contents and their order vary among denominations...

 Old Testament

Old Testament

The Old Testament, of which Christians hold different views, is a Christian term for the religious writings of ancient Israel held sacred and inspired by Christians which overlaps with the 24-book canon of the Masoretic Text of Judaism...

 and Jewish

Judaism

Judaism ) is the "religion, philosophy, and way of life" of the Jewish people...

 Tanakh

Tanakh

The Tanakh is a name used in Judaism for the canon of the Hebrew Bible. The Tanakh is also known as the Masoretic Text or the Miqra. The name is an acronym formed from the initial Hebrew letters of the Masoretic Text's three traditional subdivisions: The Torah , Nevi'im and Ketuvim —hence...

. He is also called Sophonias as in the New Catholic Encyclopaedia and in Easton's [Bible] Dictionary.
The name might mean "Yah(weh) has concealed", "[he whom] Yah(weh) has hidden", or ""Yah(weh) lies in wait"".
The most well-known Biblical figure bearing the name Zephaniah is the son of Cushi, and great-grandson of Hezekiah

Hezekiah

Hezekiah was the son of Ahaz and the 14th king of Judah. Edwin Thiele has concluded that his reign was between c. 715 and 686 BC. He is also one of the most prominent kings of Judah mentioned in the Hebrew Bible....

, ninth in the literary order of the minor prophets.