Paulo Roberto Costa Regula (born 12 March 1989) is a Portuguese professional footballer who plays as a midfielder.

In the 2008–09 season he began to receive callups to the main squad, making his debut in the Primeira Liga on 24 January 2009 by coming on as a 62nd-minute substitute in a 0–1 home loss against Associação Naval 1º de Maio.

[2] Regula repeated individual numbers in the 2009–10 campaign, again appearing in 11 league games but managing to score once – in a 3–5 loss at F.C.

[4][5] After becoming a free agent, Regula was set to complete a transfer to Calcio Catania in Italy, with the move even being announced in July 2011.

Regula was loaned to Segunda Liga team Associação Naval 1º de Maio for 2012–13.