Constantin "Titi" Aur (born 25 December 1963 in Bârlad) is a Romanian rally driver.
He scored 2 points in the ADAC Rallye Deutschland, to finish 19th in the 2003 Production Car World Rally Championship (PCWRC).
Aur is a long-time friend of WRC driver Manfred Stohl of Austria.
In 2006, Titi Aur won a record-breaking eighth national title driving a Mitsubishi Lancer Evo IX for the OMV-Petrom Rally Team, in the Romanian National Rally Championship (CNR), organized by the FRAS.
In 2010, aged 47, Titi Aur returned for a full season in the CNR, joining champion squad Jack Daniel's Rally Team, again in a Mitsubishi Lancer Evo IX.