Piotr Ugrumov (Latvian: Pēteris Ugrjumovs or Pjotrs Ugrjumovs, Russian: Пётр Угрюмов) (born 21 January 1961) is a former Russian-Latvian professional road racing cyclist who participated for Latvia after the dissolution of the Soviet Union, though he was a part of the Russian delegation at the 1996 Summer Olympics. His career as a professional lasted from 1989 to 1999, he had ten victories. Ugrumov finished second at the 1994 Tour de France. Between 1990 and 1996 he came in the Top 10 of seven Grand Tours, four in the Giro, two in the Tour and one in the Vuelta.

Ugrjumovs was born in Riga to a Russian father and Belarusian mother, and attended Riga Secondary School No. 28. He has lived in Italy since 1989. In 1997, Ugrjumovs' old Soviet passport expired and he took up Russian citizenship, but in 2005 he was awarded Latvian citizenship under the name of Pēteris Ugrjumovs and pledged to renounce the Russian one.