Roberto Martínez Rípodas (born 15 September 1976), known as Tiko, is a Spanish retired professional footballer who played as a central or a defensive midfielder, and is the assistant manager of CD Basconia.

Born in Pamplona, Navarre, Tiko emerged through the ranks of hometown club CA Osasuna, alternating between the A and B-sides for some time, with the former competing in the second division.

In his final two seasons he was severely hampered by injuries[7] and the emergence of Carlos Gurpegui and Javi Martínez, playing only a combined seven league matches.

In 2015, he joined the staff of Athletic Bilbao's reserves under former Osasuna teammate José Ángel Ziganda;[11] in 2017 he became assistant manager of CD Basconia (the former club's farm team), working with Ander Alaña.

[12] Tiko topped a successful 2001–02 season (32 games, seven goals) with his sole cap for Spain, playing in a friendly with the Netherlands on 27 March 2002 as the nation lost 0–1 in Rotterdam.