Peciu Nou (Serbian: Улбеч, romanized: Ulbeč; German: Ulmbach or Neuwien, "New Vienna"; Hungarian: Újpécs) is a commune in Timiș County, Romania.

It is composed of three villages: Diniaș, Peciu Nou (commune seat) and Sânmartinu Sârbesc.

[4] Between 1401–1406, the locality was a royal domain with urban status (opidum regis Vybech).

[4] In 1526 Hungary became a pashalik; after this period the sultan colonized many Serbs in Banat, and the name of the locality was changed from Vibech to Peciui.

[2] The locality did not appear on Count Mercy's maps from 1723–1725, suggesting that the settlement was destroyed during the Ottoman–Habsburg wars.