Previously unpublished whole-rock major- and trace-element compositions of volcanic samples from the Alaska Peninsula-Aleutian arc, Alaska, Raw Data File 2025-2, provides previously unpublished whole-rock analyses or re-analyses of lavas or other volcanic rocks from Alaska volcanoes collected by Alaska Volcano Observatory (AVO) geologists and others from 1992 to 2021 (see accompanying spreadsheets of geochemical analyses and applicable metadata). This data describes the nature and character of samples from a past eruption to aid in discussing Alaskan volcanism's spatial and temporal patterns. In addition, the work supports improvements to eruption scenario forecasts and hazard response. All analyses were made by the GeoAnalytical laboratory at Washington State University (WSU) in Pullman, Washington. The dataset contains analyses from 16 volcanoes, including 189 previously unpublished analyses from Mount Okmok, 85 from Augustine Volcano, and 20 from Mount Spurr. All samples have been archived in the Alaska Volcano Observatory geochemical database, https://doi.org/10.14509/30058 (Cameron and others, 2019). These data and report are available from the DGGS website: http://doi.org/10.14509/31455.