Davies replaces Michel Combes, who was promoted to the role of chief executive officer last month.
Davies most recently was Group CFO of Amsterdam-based telecom company Veon.
He has spent over a decade with Britain’s Vodafone Group (VOD.L) in various financial leadership positions in Japan, Turkey and India, and was also CFO of Verizon Wireless in the United States.
Davies takes over as Sprint CFO on July 2.
T-Mobile and Sprint, the third- and fourth-largest wireless carries, agreed to a $26 billion all-stock deal in April.
Reporting by Sonam Rai in Bengaluru; Editing by Maju Samuel and Anil d'Silva