Consonant f0 (CF0), the phenomenon in which the vowel onset f0 tends to be higher following a voiceless consonant than following a voiced consonant, has been commonly observed across the world’s languages. The present study examined this effect in vowels following stop consonants of Catalan, using one of the largest language-specific datasets available in the Mozilla Common Voice Corpus, which after filtering, contained over 150 hours of validated speech data from over 1000 speakers. The study investigated the magnitude of CF0 in Catalan in initial and late portions of the vowel, the linguistic and social factors that modulate this effect (e.g., stop place of articulation, following segment voice, stress, utterance position, phonetic voicing, gender, and dialect), and the degree of speaker variability within the language. While the effect is small and demonstrates considerable inter-speaker variability, our results nevertheless confirm that the CF0 effect is robust in the phonetic realization of Catalan voiced and voiceless stops in the initial and late portions of the vowel. Moreover, the effect of phonetic voicing goes in the opposing direction to CF0, suggesting that the phonetic targets corresponding to f0 are controlled during phonetic realization.