Zeta Serpentis (ζ Ser, ζ Serpentis) is a star in the constellation Serpens.
Zeta Serpentis is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.62. It is approximately 75.7 light years from Earth. This star has nearly double the radius of the Sun and is radiating 6.3 times the Sun's luminosity from its outer atmosphere at an effective temperature of 6,529 K.