Situ was one of the highest ranking government offices in ancient China. Established in the Western Zhou dynasty, it was originally written as (), meaning Administrator of Land.
During the Han dynasty, the title became written with the different characters (), which is translated variously as Minister over the Masses or Excellency over the Masses. It was one of the three most important official posts during the Han dynasty, called the Three Excellencies. The nominal salary for the post was 20,000 dÃÂ n () of grain.
The title is the origin of the surname Situ.