शनिवार हा आठवड्यातील एक वार आहे. हे नाव शनि ग्रहावरून घेतले आहे.

Saturday is the day of the week between Friday and Sunday. No later than the 2nd century, the Romans named Saturday diēs Sāturnī for the planet Saturn, which controlled the first hour of that day, according to Vettius Valens. The day's name was introduced into West Germanic languages and is recorded in the Low German languages such as Middle Low German satersdach, saterdach, Middle Dutch saterdag, and Old English Sæternesdæġ, Sæterndæġ or Sæterdæġ.