This catalogue has been created in conjunction with the Loitering Munitions and Unpredictability: Autonomy in Weapon Systems and Challenges to Human Control report published in May 2023. It provides information on the technical details, development history, and use of autonomy and automation in a global sample of 24 loitering munitions. This catalogue has been constructed using a range of open-source material. This includes: (1) brochures, factsheets and other marketing material published by weapons manufacturers; (2) press releases and factsheets published by defence ministries; (3) media reports from reputable international news and defence outlets; (4) existing catalogues of weapons with autonomous and automated features; and (5) open-source intelligence presented on social media sites such as Twitter. A detailed explanation of our case selection and research approach can be found in the fourth section of our accompanying report. Three methodological challenges should be kept in mind when reading our catalogue: There are gaps in the information which is publicly available on the technical design details and use of autonomy and automation in loitering munitions. We have neither observed the real-world testing and development of these weapons nor used them. As with other existing databases, our entries should thus be read as being more of an indicative rather than definite description of loitering munition development practices. Autonomy is a contested and politicised notion which has meant different things, to different actors, at different times. A review of the available open-source information on the use of “autonomy” to support mobility and targeting functions in loitering munitions can present vague and, at times, even contradictory findings. The weight given to the publicly available information on the technical capabilities of loitering munitions must be qualified by uncertainties regarding the Rules of Engagement under which these systems are operated. Whilst the systems included in our catalogue may have latent automated and autonomous features, we cannot claim to know whether these capabilities have been fielded. Where possible, we have included an image of each of the 24 loitering munitions which make up our catalogue. When we have been unable to find any information about a particular system, we have marked the relevant section of the catalogue with NDA: No Data Available. All references are provided as URLs and were accessible online as of 05/01/2023. Spotted an error? Contact Us! This catalogue has been made open access so that, if any of the information included in this document is incorrect, it can be corrected. If you spot an error in this catalogue, and would like to inform us of it, we can be reached at Thomas.watts@rhul.ac.uk Funding Research for this report was supported by a grant from the Joseph Rowntree Charitable Trust and by funding from the European Union’s Horizon 2020 research and innovation programme (under grant agreement No. 852123, AutoNorms). Dr Tom F.A. Watts’ revisions to this catalogue were funded by a Leverhulme Trust Early Career Research Fellowship (ECF-2022-135). Acknowledgements The authors would like to thank Guangyu Qiao-Franco and Anna Nadibaidze for their help researching the Chinese and Russian loitering munitions included in this catalogue. Any mistakes are our own.