Iron is both essential for and potentially toxic to bacteria, so the precise maintenance of iron homeostasis is necessary for their survival. Our previous study indicated that in the human enteropathogenYersinia enterocolitica, the regulator OmpR directly controls the transcription of thefur,fecAandfepAgenes, encoding the ferric uptake repressor and two transporters of ferric siderophores, respectively. This study was undertaken to determine the significance of the RNA chaperone Hfq and the small RNAs OmrA and RyhB1 in the post-transcriptional control of the expression of these OmpR targets. We show that Hfq silencesfur,fecAandfepAexpression post-transcriptionally and negatively affects the production of FLAG-tagged Fur, FecA and FepA proteins. In addition, we found that thefurgene is under the negative control of the sRNA RyhB1, whilefecAandfepAare negatively regulated by the sRNA OmrA. Finally, our data revealed that the role of OmrA results from a complex interplay of transcriptional and post-transcriptional effects in the feedback circuit between the regulator OmpR and the sRNA OmrA. Thus, the expression offur,fecAandfepAis subject to complex transcriptional and post-transcriptional regulation in order to maintain iron homeostasis inY. enterocolitica.