Imwas or Emmaus (Arabic: عِمواس, romanized: ʿImwās), known in classical times as Nicopolis (Ancient Greek: Νικόπολις, lit. 'City of Victory'), is a former Palestinian village ethnically cleansed by Israel, located 12 kilometres (7.5 mi) southeast of the city of Ramla and 26 kilometres (16 mi) from Jerusalem in the Latrun salient of the West Bank. It is traditionally (possibly from as early as the 3rd century, but probably incorrectly) identified with the biblical Emmaus. In 1967, the village's population was expelled and its buildings razed by Israeli forces as part of the Naksa during the Six-Day War.

After the 1948 Arab-Israeli war, Imwas fell under Jordanian rule. Its population at the time was predominantly Muslim although there was a Palestinian Christian minority. During the 1967 Six-Day War, IDF troops ethnically cleansed Emwas and the village structures were destroyed, forming a part of the larger Naksa. Imwas and the area surrounding Latrun were unilaterally 'annexed' by Israel along with the neighbouring villages of Yalo and Bayt Nuba. Today the area of the former village lies within Canada Park, which was established by the Jewish National Fund in 1973.

The name of the modern village was pronounced ʿImwās by its inhabitants. Arabic literary sources indicate the name was formerly pronounced ʿAmwās and ʿAmawās, the latter being form transcribed by the Syrian geographer Yakut (1179–1229).

In the time of Jerome, the Semitic name of Emmaus Nicopolis was ʿAmmaôs or ʿEmmaus, both beginning with an ʿāyin (ʿ). Following Clermont-Ganneau, Moshe Sharon argued that the Arabic name more faithfully approximates the town's original ancient name when compared against the name as transcribed in the Talmud, where it begins with an alef (ʾ). Kitchener and Conder suggested the name Emmaus is derived from the ancient Hebrew ḥammat, a thermal spring.

According to a tradition held by local fellahin in the 19th century, the village's name is related to an epidemic that killed the ancient Jewish inhabitants of the village, but they were miraculously brought back to life after Neby Uzair's visited the place and prayed to God to revive the victims. The fellahin described the pestilience as amm-mou-asa, which according to Clermont-Ganneau, roughly means "it was extended generally and was an affliction". Clermont-Ganneau thought this local etymology was "evidently artificial".

Emmaus is mentioned in the first Book of the Maccabees as the site where Judas Maccabeus defeated the Syrian Seleucid general Gorgias in the 2nd century BCE and subsequently fortified by General Bacchides in 160 BCE. It replaced Gezer as the head of a toparchy in 47 BCE.

Edward Robinson relates that its inhabitants were enslaved by Gaius Cassius Longinus while Josephus relates that the city, called Άμμoὺς, was burned to the ground by Publius Quinctilius Varus after the death of Herod the Great in 4 BCE.

Imwas has been identified as the site of ancient Emmaus, where according to the Gospel of Luke (24:13-35), Jesus appeared to a group of his disciples, including Cleopas, after his death and resurrection.