Decision aids communicate the best available evidence on treatment options to patients in order to facilitate informed decision-making. Research suggests that decision aids improve patients’ treatment knowledge, reduce decisional conflict, and promote more active decision-making. Despite evidence of the utility of decision aids in physical health conditions, they are both understudied and rarely used for mental health problems. The present study evaluated the acceptability and utility of a decision aid for the treatment of depression and its relationship to participants' knowledge and decision-making. Undergraduate students (N = 144) completed self-report measures assessing demographic characteristics and a baseline knowledge test regarding depression treatment. Participants were randomly assigned to receive information about pharmacological treatments first or psychological treatments first. After reviewing a vignette asking them to imagine experiencing symptoms of depression, they read the decision aid and were asked to make a hypothetical decision about which treatment option they would choose.Participants completed a follow-up knowledge test, along with a series of questionnaires assessing acceptability of the decision aid and other variables of interest (e.g., decisional conflict, preparation for decision-making). One month later, participants completed the knowledge test for the third time. Overall, a majority of participants rated the decision aid as highly acceptable and useful. There was a significant increase in participants’ knowledge of depression treatment from prior to reading to after reading the decision aid. Although participants’ knowledge scores decreased slightly at the 1-month follow-up, they were still significantly higher than their baseline scores. The hypothesis that participants’ treatment choice would be influenced by the order in which treatment options were presented to them within the decision aid was partially supported. However, this effect was eliminated when the few participants who selected the “no treatment” option were excluded, as well as when participants were given the additional option of selecting a combined treatment (i.e., medication and psychotherapy). This is one of the few studies aimed at expanding the use of decision aids to mental health conditions. Future research should evaluate the utility of this decision aid with a clinical sample. Additionally, the methodology used in this study can be translated to the evaluation of other decision aids.