This study was conducted to determine if hypohydration alters blood flow, skin temperature, or cold-induced vasodilation (CIVD) during peripheral cooling. Fourteen subjects sat in a thermoneutral environment (27°C) during 15-min warm-water (42°C) and 30-min cold-water (4°C) finger immersion (FI) while euhydrated (EU) and, again, while hypohydrated (HY). HY (-4% body weight) was induced prior to FI by exercise-heat exposure (38°C, 30% rh) with no fluid replacement; whereas during EU, fluid intake maintained body weight. Finger pad blood flow (LDF), and nailbed (T_nb), pad (T_pad), and core (T_c) temperatures were measured. LDF decreased similarly on EU and HY (32±10% and 33±13% of peak during warm-water immersion). Mean T_nb and T_pad were similar between EU (7.1±1.0°C and 11.5±1.6°C) and HY (7.4±1.3°C and 12.6±2.1°C). CIVD parameters (e.g., nadir, onset time, apex) were similar between trials, except T_pad nadir was higher during HY (10.4±3.8°C) than EU (7.9±1.6°C), which was attributed to higher T_c in 6 subjects during HY (37.5±0.2°C), compared to EU (37.1±0.1°C). The results of this study provide no evidence that hypohydration alters finger blood flow, skin temperature, or CIVD during peripheral cooling.