Paulo Renato Centeno Holvorcem (born 10 July 1967) is a Brazilian amateur astronomer and mathematician who lives in Porto Seguro, Brazil.
He is a prolific discoverer of asteroids.
He is credited by the Minor Planet Center with the discovery or co-discovery (with Charles W.
Juels) of about 197 minor planets between 1998 and 2010.Holvorcem with Juels also discovered two comets: C/2002 Y1 (Juels-Holvorcem) and C/2005 N1 (Juels-Holvorcem).
Holvorcem was also involved in the discovery of C/2011 K1 (Schwartz-Holvorcem).The main-belt asteroid 13421 Holvorcem was named after him on 9 January 2001 (M.P.C.