Sæbbi (also known as Saint Sebbi or Sebba; before 626 – 695) was son of Sexred and was the joint King of Essex from 664 to about 683 along with his cousin, Sighere.

Sæbbi is believed to have abdicated in 694 in order to enter a monastery, and was succeeded by his sons, Sigeheard and Swaefred, who ruled jointly over Essex.

Sæbbi died in 695 and was buried in Old St Paul's Cathedral in the City of London where he was revered as a saint.

[1][2] Bede recounts the burial thus (4.11): Sæbbi's tomb survived the 1087 fire at St Paul's and his remains were transferred to a black marble sarcophagus in the mid 12th century.

This sarcophagus was recorded in a series of drawings by Wenceslaus Hollar, published in Dugdale's History of St Paul's.