He’s signed a three-year deal at Ibrox.
Graeme Murty will remain in charge for Sunday’s Old Firm derby against Celtic before Caixinha takes the reins next week.
Caixinha said: “It is a great honour to join Rangers Football Club. This Club has a great history and tradition and I am proud to follow in the footsteps of legendary Rangers managers like Walter Smith, Graeme Souness and Jock Wallace.
“Rangers is a name that is known worldwide and I am looking forward to forging a positive relationship with supporters