The miRNA Registry is a comprehensive and searchable database that provides a service for assigning unique names to distinct microRNA (miRNA) genes before their publication. The database, accessible via a web interface, contains 506 miRNA entries from six organisms, including *Caenorhabditis elegans*, *Drosophila melanogaster*, human, mouse, and *Arabidopsis thaliana*. The primary aims of the registry are to ensure unique and consistent naming of miRNAs and to facilitate the rapid development of computational tools for miRNA gene prediction and target identification. The database includes detailed information such as genomic location, homologous sequences, and possible targets, with links to other data sources and literature references. The miRNA Registry is committed to long-term curation and integration with other databases, such as Rfam, to enhance the classification and understanding of miRNA sequences. The database is freely available for download and welcomes user queries and feedback.The miRNA Registry is a comprehensive and searchable database that provides a service for assigning unique names to distinct microRNA (miRNA) genes before their publication. The database, accessible via a web interface, contains 506 miRNA entries from six organisms, including *Caenorhabditis elegans*, *Drosophila melanogaster*, human, mouse, and *Arabidopsis thaliana*. The primary aims of the registry are to ensure unique and consistent naming of miRNAs and to facilitate the rapid development of computational tools for miRNA gene prediction and target identification. The database includes detailed information such as genomic location, homologous sequences, and possible targets, with links to other data sources and literature references. The miRNA Registry is committed to long-term curation and integration with other databases, such as Rfam, to enhance the classification and understanding of miRNA sequences. The database is freely available for download and welcomes user queries and feedback.