Advocacy schemes have been established throughout the United Kingdom (UK) but their evaluation by funders is varied. This article reviews the literature in respect of models of evaluation of advocacy schemes for people with learning disability. It discusses the six main models and the issues that arise in evaluation. The advantages and disadvantages of each model are analysed. The article concludes that whilst fears exist about the potential for evaluation to infringe advocacy schemes' autonomy, funders need to undertake such a process for reasons of public accountability. Advocacy schemes may find it useful to consider which model of evaluation works best for them and will be appropriate and useful for their funders.