The former Ballon d'Or winner and Inter manager has plumped for his home nation to secure a second consecutive European title on Sunday
Suarez, who was at one point the most expensive footballer on the planet, scored 14 goals in 32 games for La Roja between 1957 and 1972, and was a key member of Spain's first European Championship-winning team in 1964.
But although he was also a star of Italian football, he has insisted that his affection for the Azzurri will not get in the way of supporting his nation.
The 77-year-old enjoyed a glittering career in both countries, featuring in more than 400 games for Barcelona, Inter and Sampdoria, before going on to manage the Nerrazzuri three times as well as the Spanish national team.
Nevertheless, the 1960 Ballon d'Or winner has made it clear who he wants to prevail in Sunday's showpiece final in the Ukrainian capital.
"I made my living in Milan, but I am Spanish and my desire is that Spain win the European Championship. Nothing would make me more excited than to see them raise another title." the former manager told AS.
"Italy are awesome. It's a team that competes very well, handling the stress of a tournament. Win or lose the final, the fact that Spain has created tactics that other great champions mimic, we should be proud.
"Do not dismiss [penalties], of course. It will be a very balanced game which can be decided on a [small] detail. These are two evenly-matched teams. [Cesare] Prandelli is a great coach, very tactical, and [Vicente] Del Bosque [is] also very skilled.
Sunday's final between Spain and Italy at the Olympic Stadium in Kiev kicks off at 20:45CET.