At Surheide, near Bremerhaven (NW Germany) an interglacial lacustrine deposit from a sequence of Elsterian to Saalian age has been pollen analytically investigated. The pollen diagram spans the lower and middle part of this interglacial while the upper part is missing. The main features of the pollen diagram include an early and substantial peak of Corylus, a late maximum of Abies as well as failure to record Carpinus, Ilex and Tertiary elements. It is estimated that temperatures comparable to those attained in the Holocene were attained. Comparison with other pollen diagrams shows that Eemian, Hol-steinian s.l. and all known Cromerian interglacials can be excluded from consideration. There is, however, a strong similarity with the early warm period of the Ferdinandow interglacial, which is widely represented in southern Poland and further to the east, and is assumed to lie between the Elster I and Elster II phases. Material of nordic origin, recorded below the Surheide interglacial, also supports the view that this interglacial deposit may be assigned to this position in the glacial/interglacial sequence.