Background: To compare the acute effects of water-based aerobic–resistance and resistance–aerobic concurrent training (CT) sessions on energy expenditure (EE) during and postexercise in young women. Methods: Nine active women (24  y; 60  kg) completed 4 sessions: (1) familiarization, (2) aquatic maximal test to determine the heart rate corresponding to the anaerobic threshold, (3) CT protocol with aerobic–resistance sequence, and (4) CT protocol with resistance–aerobic sequence. Both protocols started and ended with the participants in the supine position for 30 minutes to perform resting and postexercise oxygen consumption measurements. The water-based resistance protocol comprised 4 sets of 15 seconds at maximal velocity, and the water-based aerobic protocol was performed at a continuous intensity (heart rate corresponding to the anaerobic threshold). EE measurements were calculated based on oxygen consumption and the corresponding caloric equivalent. Paired t test was used to compare the EE values between the water-based CT intrasession exercise sequences (α = .05). Results: There was no difference between the water-based aerobic–resistance and resistance–aerobic in total EE (330.78 vs 329.56 kcal; P = .96), EE per minute (7.35 vs 7.32 kcal·min−1; P = .96), and postexercise EE (63.65 vs 59.92 kcal; P = .50). Conclusions: The intrasession exercise sequence during water-based CT had no influence on the EE in young women.