This study sought to establish the validity and reliability of a recent measure of interdependent happiness, the Interdependent Happiness Scale (IHS; Hitokoto & Uchida, 2015) with a sample of Filipino undergraduates. Interdependent happiness refers to the state of being relationally oriented, preserving quiescence, and remaining ordinary among others. The IHS was administered to 221 college students from three private, sectarian universities in Metro Manila. The IHS was found to have high internal consistency reliability (Cronbach’s alpha = .852). The one-dimensional structure of the IHS was also confirmed, with acceptable goodness-of-fit indices: χ2 = 51.88, df = 24, p-value = .001; χ2 /df = 2.16; RMSEA = .07; SRMR = .05; CFI = 0.96; TLI = 0.94. The IHS was significantly correlated with measures of Positive and Negative Affect and with Subjective Well-Being.