(612620) 2003 SQ317 is a classical trans-Neptunian object and member of Haumea family from the Kuiper belt located in the outermost regions of the Solar System, approximately 300 kilometers in diameter.

It was first observed on 23 September 2003, by astronomers of the Canada–France Ecliptic Plane Survey at Mauna Kea Observatories on Hawaii.

[7] 2003 SQ317 is a classical Kuiper belt object (cubewano) belonging to the hot population.

The object has a large light curve amplitude of about 0.85, which indicates that it has an extremely elongated shape or is a contact binary.

[6] 2003 SQ317 was identified as a member of the Haumea family, which is defined based on a common pattern of IR water-ice absorption, neutral visible spectrum and the clustering of the orbital elements.