Daniel Alberto 'Cata' Díaz (born 13 July 1979 in San Fernando del Valle de Catamarca) is an Argentine footballer who plays for Getafe CF in the Spanish first division.

A strong central defender with a powerful shot, he can also be adapted at right back.

Nicknamed Cata because of his origins from the province of Catamarca, Díaz started playing at youth amateur local team Juventud de Catamarca before moving in 1997 to Rosario Central, still as a youth. Three years later, he first appeared professionally.

Díaz moved to Club Deportivo Cruz Azul in 2003. After only one season with the Mexican club, he returned to Argentina to become Alfio Basile's captain in Colón de Santa Fe. Short after, he received offers to move to Argentine giants Boca Juniors and Club Atlético River Plate, but being at that time Basile Boca's coach, the player decided to move to Boca, for around $3 million.

Cata made his debut for Boca in a 4–1 victory over Gimnasia y Esgrima de Jujuy, and was a big part in the side's 2005 Apertura-winning campaign, adding the South American Supercup (win over Once Caldas of Colombia) and the South American Cup (defeat of Mexico's UNAM Pumas).

Daniel (Hebrew: דָּנִיֵּאל, Modern Daniyyel Tiberian Dāniyyêl ; Arabic: دانيال, meaning in Hebrew "God is my Judge") is the protagonist in the Book of Daniel of the Hebrew Bible. In the narrative, when Daniel was a young man, he was taken into Babylonian captivity where he was educated in Chaldean thought. However, he never converted to Neo-Babylonian ways. By Divine Wisdom from his God, Yahweh, he interpreted dreams and visions of kings, thus becoming a prominent figure in the court of Babylon. Eventually, he had apocalyptic visions of his own that have been interpreted as the Four monarchies. Some of the most famous tales of Daniel are: Shadrach, Meshach, and Abednego, The writing on the wall and Daniel in the lions' den.

In the third year of the reign of Jehoiakim (BC 606), Daniel and his friends Hananiah, Mishael, and Azariah were among the young Jewish nobility carried off to Babylon. The four were chosen for their intellect and beauty to be trained as advisors to the Babylonian court,(Daniel 1) Daniel was given the name Belteshazzar, i.e., prince of Bel, or Bel protect the king!(not to be confused with the neo-Babylonian king, Belshazzar). Hananiah, Mishael, and Azariah were given the Babylonian names, Shadrach, Meshach, and Abednego, respectively.