A workshop on Network Analysis and Visualisation was held on September 11, 2005 in Limerick Ireland, in conjunction with 2005 Graph Drawing conference. This report review the background, progress and results of the Workshop. 1 Motivation Recent technological advances produce many large and complex network models in many domains. Examples include web-graphs, biological networks and social networks. Visualisation can be an effective tool for the understanding of such networks. Good visualisation reveals the hidden structure of the networks and amplifies human understanding, thus leading to new insights, new findings and possible predictions for the future. Analysis methods are available for these networks. However, analysis tools for networks are not useful without visualisation, and visualisation tools are not useful unless they are linked to analysis. This workshop aimed to gather researchers interested in the analysis and visualisation of large and complex networks. More specifica...