Aukrug is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany.

Aukrug is south of the municipality of Mörel or Gnutz, east of Hohenwestedt and west of Wasbek and Ehndorf.

Innien, the oldest part of the municipality, appears in a surviving record from as far back as 1128.

The name Aukrug comes from ‘in de Aukrögen’, using the Plattdeutsch (low German) of the region, and means something along the lines of ‘in the folds of the flood plain’.

Tönsheide Forest lies east of Aukrug specialist hospital and is a nature reserve with an area of 67 hectares (170 acres).