Paulo Sérgio Martinho Cabral (born 24 June 1972) is a Portuguese former professional footballer who played as either a right or left back.
Born in Vila Nova de Cerveira, Viana do Castelo District, Cabral started his senior career with local SC Vianense, promoting to the third division in his first year and playing two full seasons with the first team overall.
Os Belenenses, appearing in 31 matches for the latter club (one goal) in the 1998–99 campaign as it achieved top-flight promotion.
Cabral continued to be an undisputed starter with the Lisbon side in the following two seasons, which attracted the attention of neighbouring S.L.
On 15 November 2000, Cabral earned his first – and only – cap for Portugal, coming on as a substitute for Carlos Secretário for the final ten minutes of a 2–1 friendly win over Israel.