Traumatic loss is associated with high rates of post-traumatic stress disorder (PTSD) and appears to inhibit the natural process of grieving, meaning that patients who develop PTSD after loss trauma are also at risk of experiencing enduring grief. Here we present how to treat PTSD arising from traumatic bereavement with cognitive therapy (CT-PTSD; Ehlers et al., 2005). The paper describes the core components of CT-PTSD for bereavement trauma with illustrative examples, and clarifies how the therapy differs from treating PTSD associated with trauma where there is no loss of a significant other. A core aim of the treatment is to help the patient to shift their focus from loss to what has not been lost, from a focus on their loved one being gone to considering how they may take their loved one forward in an abstract, meaningful way to achieve a sense of continuity in the present with what has been lost in the past. This is often achieved with imagery transformation, a significant component of the memory updating procedure in CT-PTSD for bereavement trauma. We also consider how to approach complexities, such as suicide trauma, loss of a loved one in a conflicted relationship, pregnancy loss and loss of life caused by the patient.