Although Hispanic Americans are one of the fastest growing ethnic populations in the United States, use and psychometric testing of Spanish versions of two instruments commonly used to measure quality of the couple's relationship and family functioning, the Dyadic Adjustment Scale (DAS) and the FACES II, have not been reported. The purpose of this study was to test the psychometric properties of the newly translated Spanish version of these two instruments. In this bilingual sample of 78 adults, internal consistencies were acceptable (.72 to .77 for the FACES II; .67 to .93 for the DAS) and test-retest correlations were high (.80 to .88 FACES II; .79 to .87 DAS). Correlations between the Spanish and English versions were also high (.87 to .94 FACES II; .91 to .99 DAS). Psychometric findings support the reliability and validity of the Spanish versions of these newly translated measures.