Evangelism has been central to Rev Porter's ministry and together with his wife Lucille, he has lead nearly 40 outreach projects across the diocese and will be overseeing the one LIFE mission to share the gospel with more communities across Southwell and Nottingham in September.
Upon announcing his retirement, Bishop Tony said: "It has been a great privilege to serve in the Diocese of Southwell & Nottingham and to be part of its vision for Growing Disciples in every parish".
As part of Rev Porter's 42 years of service he was chaplain to Manchester City Football Club and the Greater Manchester Police.
In 2015 he was commissioned as the Archbishops' Sport Ambassador, working to strengthen links between the Church and sport.
The Bishop of Southwell & Nottingham, the Right Reverend Paul Williams, said: "Bishop Tony has been a tremendously encouraging servant of God in this diocese, with an untiring love for sharing the good news of Jesus, especially with those beyond the fringes of the church, or struggling on the margins of society.
"He is a big-hearted evangelist with a wide vision for the impact the church can have in serving the poor, yet equally himself when supporting leaders in sport, business and civic life."
A service of farewell will be held at Southwell Minster in March next year.
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