Perceived physical literacy contributes to the understanding of individuals' physical activity (PA) engagement. It is important a scale is validated in the population of interest. Also, the type of administration may affect reliability and validity. So, the aim of this study was twofold: 1) to examine evidence of validity and reliability of the Spanish version of the Physical Literacy for Children Questionnaire (PL-C Quest) in a cohort of children and adolescents and 2) to assess two versions of administering the scale. The study was conducted in two stages, depending on the administration format of the PL-C Quest (double-dichotomous, and four-point response style) in a cohort of 2004 (n1 = 916; n2 = 1088) students. In both administration forms, evidence of validity (relation with other variables, i.e., concurrent and predictive, and structural validity), invariance (between boys and girls) and reliability (test-retest and internal consistency) were examined. There was evidence of validity for both administration types, with adequate reliability and good to excellent test-retest reliability for both administration forms. Both methods of administration for the PL-C Quest can capture perceived physical literacy in Spanish 8- to 14-year-old children and early adolescents. •The PL-C Quest can be used to recognize youth' perception of physical literacy.•Both versions of the Spanish PL-C Quest are evidenced as valid and reliable.•Perceived physical literacy may explain individuals' engagement in physical activity.•The double-dichotomous and four-point in a row are right to capture children's self-reports.