Family name origins & meanings
- Scottish : of uncertain origin. Early forms such as de Kellock, de Keloche are evidently habitational names, perhaps from Keiloch in Aberdeenshire or Killoch in Ayrshire (see Killough).
- Scottish and northern English : from the Old Norse personal name Kjallákr, which is a borrowing of Irish Ceallach (see Kelly).
- Daniel Kellogg (1630–88), from Great Leighs, Essex, England, settled in Norwalk, CT, in 1656. His son, Edward (1790–1858), was a financial reformer and the intellectual father of Greenbackism (a movement favoring promotion of economic growth by increasing the paper money supply, regardless of the inflationary side effects).