A chuppah (Hebrew: חֻפָּה, romanized: ḥuppā, lit. 'canopy, covering', Yiddish: חֻפָּה, romanized: khupe~khipe) is a canopy under which a Jewish couple stand during their wedding ceremony. It consists of a cloth or sheet, sometimes a tallit, stretched or supported over four poles, or sometimes manually held up by attendants to the ceremony. A chuppah symbolizes the home that the couple will build together.

In a more general sense, chuppah refers to the method by which nessuin, the second stage of a Jewish wedding, is accomplished. According to some opinions, it is accomplished by the couple standing under the canopy along with the rabbi who weds them; however, there are other views.

A traditional chuppah, especially in Orthodox Judaism, recommends that there be open sky exactly above the chuppah, although this is not mandatory among Sephardic communities. If the wedding ceremony is held indoors in a hall, sometimes a special opening is built to be opened during the ceremony. Many Hasidim prefer to conduct the entire ceremony outdoors. It is said that the couple's ancestors are present at the chuppah ceremony.

In Yemenite communities, the practice was not for the groom and his bride to stand under a canopy (chuppah) hung on four poles, as is widely practised today in Jewish weddings, but rather to be secluded in a bridal chamber that was, in effect, a highly decorated room in the house of the groom, known as the chuppah (see Yichud).

The word chuppah appears in the Hebrew Bible, for example in Joel 2:16 and Psalms 19:5. Abraham P. Bloch states that the connection between the term chuppah and the wedding ceremony "can be traced to the Bible"; however, "the physical appearance of the chuppah and its religious significance have undergone many changes since then".

There were for centuries regional differences in what constituted a huppah. Indeed, Solomon Freehof finds that the wedding canopy was unknown before the 16th century. Alfred J. Kolatch notes that it was during the Middle Ages that the "chupa ... in use today" became customary. Daniel Sperber notes that for many communities before the 16th century, the huppah consisted of a veil worn by the bride. In others, it was a cloth spread over the shoulders of the bride and groom.

Numerous illustrations of Jewish weddings in medieval Europe, North Africa and Italy show no evidence of a huppah as it is known today. Moses Isserles (1520–1572) notes that the portable marriage canopy was widely adopted by Ashkenazi Jews as a symbol of the chamber within which marriages originally took place in the generation before he composed his commentary to the Shulchan Aruch.

In Biblical times, a couple consummated their marriage in a room or tent. In Talmudic times, the room where the marriage was consummated was called the chuppah. There is however a reference of a wedding canopy in the Babylonian Talmud, Gittin 57a: "It was the custom when a boy was born to plant a cedar tree and when a girl was born to plant a pine tree, and when they married, the tree was cut down and a canopy made of the branches".