A memorial and thanksgiving ceremony will be held at Westminster Chapel in central London at 2pm on Wednesday 29th November.
Rev Windsor, who passed away at his home aged 74 on 17th September, had served as a Special Ambassador for Christian Solidarity Worldwide (CSW).
In a statement released online, the organisation said: "We'd love you to join us in remembering Stuart's life and giving thanks for his legacy at a special memorial and thanksgiving service.
"Stuart was such a big part of CSW's history, serving as our National Director for 19 years before stepping down and becoming Special Ambassador, a role he served in until the end.
"A dedicated defender and champion of freedom of religion, we'll never forget Stuart's courage, compassion, and deep, sincere love of Jesus."
Shortly before his death, Rev Windsor underwent angioplasty - heart surgery - after suffering a serious heart attack in July this year.
Following news of Rev Windsor's death, CSW's Chief Executive, Mervyn Thomas said: "I have worked with Stuart for nearly a quarter of a century.
"I have known no-one with a more caring and compassionate heart for the suffering than Stuart."
Investing years of his life in drawing attention to the plight of believers around the world who live under pressure for their faith, Rev Windsor addressed the US Congress, the United Nations and European and UK parliaments.