Alexander "Alex" Hidalgo Santos (born June 10, 1970) is a Filipino field reporter who is currently a news and radio anchor for Net 25 and DZEC Radyo Agila.

Santos was a former news director for DWIZ, and a former newscaster and television host for ABS-CBN, DZMM and PTV.

In 1998, Santos has been started his career as sportscaster and courtside reporter of the newly formed Metropolitan Basketball Association (a regional-professional basketball league), first as a sideline reporter during the MBA's maiden season in 1998, and later as a play-by-play commentator In 1999.

At DZMM, he anchored the weekday edition of Radyo Patrol Balita: Alas Kuwatro also with Bernadette Sembrano (replaced Jasmin Romero in 2011) and All Aboard!

On February 28, 2009, he was one of the co-hosts of the investigative program XXX: Exklusibong, Explosibong, Exposé alongside Pinky Webb and Julius Babao, replacing Karen Davila and Henry Omaga-Diaz, and was later replaced by Anthony Taberna on June 28, 2010.