Diogo Castro Santos

{{short description|Portuguese racing driver (born 1969)}}

{{Infobox racing driver

| name = Diogo Castro Santos

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| nationality = {{flagicon|PRT}} Portuguese

| birth_date = {{birth date and age|1969|04|26|df=y}}

| birth_place = Portugal

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Diogo Castro Santos (born 26 April 1969) is a Portuguese racing driver. He has competed in such series as the EFDA Nations Cup and the German Formula Three Championship. He finished in second-place in the Masters of Formula 3 race of 1992.