Sadwavirus is a genus of viruses in the order Picornavirales, in the family Secoviridae.

Plants (specifically Satsuma mandarin trees) serve as natural hosts.

Symptoms are enations, multiple flushing, stunting or dwarfing, reduction in number and size of leaves and fruits.

The following subgenera and species are recognized:[2] Viruses in Sadwavirus are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry.

The virus exits the host cell by tubule-guided viral movement.