Gender priming in speech production relates to the issue of whether retrieval of a noun is facilitated by preactivation of its grammatical gender. Such gender-to-lexical entry priming has been considered the mechanism underlying the gender-identity effect in word substitution errors (i.e., a substituted word tends to have the same gender as the target word.) Gender priming was explored in two primed picture-naming experiments with German participants. Primes were presented either visually or auditorily and differed in whether they carried grammatical gender information or not. Unlike inhibition from a gender-incongruent prime, facilitation from a gender-congruent prime was weak, not reliable, and dependent on the baseline and prime modality. Implications for the interpretation of the gender-identity effect are discussed.