Hemming may refer to:
Hemming I (died 812) was a king in Denmark from 810 until his death. He was the successor of King Gudfred, his uncle.
Hemming I is mentioned in the Royal Frankish Annals as son to an unnamed brother of Gudfred. Though Gesta Hammaburgensis ecclesiae pontificum by Adam of Bremen considers Hemming and Gudfred to be "patruelis", paternal cousins. Gudfred had several sons who served as co-rulers of the Danes. However, they are typically called "sons of Gudfred" without mention of their names or personal histories. The sole exception was Horik I who seems to have survived his siblings and was sole ruler by 827. They can all be considered paternal cousins of Hemming.
Another nephew of Gudfred, Reginold, is mentioned in the Royal Frankish Annals. He is also identified as son to an unnamed brother of Gudfred. He could be a sibling to Hemming. Assuming Gudfred had more than one sibling, Hemming and Reginold could also be paternal first cousins. Reginold appears in an 808 entry detailing a campaign of Gudfred against the Obotrites. Gudfred reportedly "made two-thirds of the Obodrites tributary. But he lost the best and most battle-tested of his soldiers. With them he lost Reginold, his brother's son, who was killed at the siege of a town along with a great number of Danish nobles."
Bishop Hemming was the Roman Catholic Bishop of Turku during 1338-1366. He was born in Sweden.