Saucunk or Sawcunk (also known as Soh-kon, Sacung, Sankonk, Sackum, or Shingas' Town) was a town established by the Lenape and Shawnees. It was the site of a Catholic mission and was visited by Conrad Weiser, Christian Frederick Post and George Croghan. The Lenape chiefs Tamaqua, Pisquetomen, Captain Jacobs and Shingas all lived there temporarily. Saucunk was abandoned after the Battle of Bushy Run in 1763.

The name "Saucunk" is a corruption of the Lenape "pasakunk", meaning "at the mouth or fork of a stream."

Saucunk was established at the mouth of the Beaver Creek by the Lenape and Shawnees, possibly as early as 1725, during their westward migration. The settlement extended to the bluff above the Ohio about a mile below the mouth of the Beaver. It was near the site of present-day Rochester, Pennsylvania. The town was for many years the main community of the Turtle Division of the Lenape.

Conrad Weiser went to Saucunk when on his mission to the Western Indians in 1748. He says in his Journal under date of August 30: "I went to Beaver Creek, an Indian Town, about 8 miles off (from Logstown), chiefly Delawares, the rest Mohocks, to have some belts of wampum made...We both (Weiser and Andrew Montour) lodged at this town at George Croghan's trading house."

In 1755 Saucunk was used as a staging area by Captain Jacobs and Shingas for raids on British colonial settlements. After the destruction of Kittanning in August, 1756, Shingas and his brother Pisquetomen lived at Saucunk until 1759, when the ongoing French and Indian War led them to move to Kuskusky. During this time, the community was often referred to as Shingas' Town.

Marie Le Roy and Barbara Leininger, both age 12, were captured during the Penn's Creek massacre on 16 October 1755. In her account of her captivity, Marie Le Roy reports that in November, 1756 she and Barbara Leininger "accompanied our Indian master to Sackum [Saucunk], where we spent the winter, keeping house for the savages, who were continually on the hunt."

Hugh Gibson, 14, was captured in July, 1756, by Lenape Indians, outside Robinson's Fort, near present-day Southwest Madison Township, Pennsylvania. His mother and a neighbor were killed by the Indians, and he was brought to Kittanning, where he was adopted by Shingas' brother Pisquetomen. In the spring of 1757 Gibson and Pisquetomen moved to "Soh’-koon, at the mouth of the Big Beaver," where they lived together with Pisquetomen's Dutch wife for a year, then moved to Muskingum. In March, 1759, Gibson escaped, together with Marie Le Roy and Barbara Leininger and a Scotsman named David Brackenridge, and walked 250 miles to Fort Pitt (then under construction).

Marie Le Roy states that in October 1758, after French and Indian forces were defeated in an attack on the British outpost of Fort Ligonier, most of the population of the Kuskusky towns, Logstown and Saucunk fled to Muskingum. John McCullough was 8 years old when he was captured by Lenape warriors in July, 1756, and brought to "Shenango," (a corruption of Chiningué). In his captivity narrative he reports living there with a Lenape family for two and a half years before moving to "Kseek-he-ooing" (possibly Saucunk) in late 1758. In December, 1764, McCullough was released along with over 200 other captives by order of Colonel Henry Bouquet.