Comprehensive analyses of marine sediments recovered from Neny Fjord, Marguerite Bay, yield a high-resolution record of Holocene climate variability. The ~12 m jumbo piston core was collected aboard the Nathanial B Palmer in 2002. The chronostratigraphy for the core is derived from radiocarbon-dated foraminifera and shell fragments. The base of the core, dated to 8060 ¹⁴C, reveals an ice-distal facies consistent with an early Holocene warm period, with deglaciation of the fjord having already occurred. Between ~6000 and ~4500 ¹⁴C yrs climate cooling is indicated by reduced sedimentation rates and increasingly coarse terrigenous flux. A ~1500 ¹⁴C yrs hiatus follows, inferred to be a period of ice-shelf or glacial advance over the site. The upper core (2000 ¹⁴C yrs to present) is characterised by a coarsening grain size and a sea ice diatom assemblage.