Itzstedt is a municipality in the district of Segeberg, in Schleswig-Holstein, Germany.

Itzstedt lies about 16 kilometers northeast of Norderstedt on the Bundesstraße 432, which is the road that runs between Hamburg and Bad Segeberg.

The regional bus line 7550 runs hourly along the Bundesstraße 432 from the Ochsenzoll subway station to the Bad Segeberg train station.

During the main traffic hours (in the morning hours towards Hamburg, in the afternoon towards Bad Segeberg) the bus runs every 30 minutes.

Until the 1970s,the Elmshorn-Barmstedt-Oldesloe railway had a station in northern Nahe, about 1 km away from Itzstedt.