Arish or El-Arish (Egyptian Arabic: العريش, romanized: al-ʿArīš, Egyptian Arabic pronunciation: [elʕæˈɾiːʃ]) is the capital and largest city of the North Sinai Governorate of Egypt, as well as the largest city on the Sinai Peninsula, lying on the Mediterranean coast 344 kilometres (214 mi) northeast of Cairo and 45 kilometres (28 mi) west of the Egypt–Gaza border. Its estimated population was 204,391 in 2023.

In antiquity and the Early Middle Ages, the city was known as Rinokoroura (Ancient Greek: Ῥινοκόρουρα, Coptic: ϩⲣⲓⲛⲟⲕⲟⲣⲟⲩⲣⲁ). ʻArīsh is located at the mouth of Wadi al-Arish, a 250 kilometres (160 mi) long ephemeral watercourse. The Azzaraniq Protectorate is on the eastern side of ʻArīsh.

There are several hypothetical possibilities for the origin of the modern name of the city, which is first mentioned under it in the 9th century. One possibility is that the name might be an Arab phonetic transcription of a pre-existing toponym. However, there is no name that fully qualifies as such, apart from the Ariza (Ancient Greek: Αριζα) of Hierokles, which is difficult to interpret.

Another possibility is that the name el-Arish was given to a city that already existed in the Byzantine period. However, no Arab source mentions such a change of name for any city in the region, and there is no plausible explanation for this change.

A third possibility is that the name el-Arish was created when a new settlement of some "huts" (Arabic: عرش, romanized: ʕarš) was established in the 7th or 8th century. It is possible that the city of Rinokoloura fell into ruins in the first half of the 7th century, and a new community arose that the new inhabitants started to call el-Arish, after their poor living conditions.

M. Ignace de Rossi derived the Arabic name from the Egyptian ϫⲟⲣϣⲁ(ⲓ), Jorsha, 'noseless', an analogue of Greek Rinocorura.

A Coptic-Arabic colophon dating to 1616 mentions the writer "Solomon of Shorpo, son of Michael, from the city of Mohonon" (ⲥⲱⲗⲟⲙⲟⲛ ⲛϣⲱⲣⲡⲟ ⲡϣⲏⲣⲓ ⲙⲓⲭⲁⲏⲗ ⲛⲧⲉ ⲡⲟⲗⲓⲥ ⲙⲟϩⲟⲛⲟⲛ); in the Arabic version, the writer is identified as being "of el-Arish". Timm raises the possibility that Shorpo (Coptic: ϣⲱⲣⲡⲟ) may be another name for el-Arish.

Arish is in the northern Sinai, about 50 kilometres (31 mi) from the Rafah Border Crossing with the Gaza Strip. North Sinai is targeted by Egyptian government planners to divert population growth from the high-density Nile Delta. It is proposed that by completing infrastructure, transportation and irrigation projects, three million Egyptians may be settled in North Sinai.