Rt Revd Vivienne Faull was enthroned at a service in Bristol Cathedral on Saturday.
Members of congregations from across the city gathered and were joined by bishops from across the country, including Archbishop of York Dr John Sentamu.
Bishop Viv travelled to the service by boat and was greeted by children from local schools who accompanied her to the Cathedral.
Others attending the service included the Lord-Lieutenant of Bristol, the Lord Mayor of Bristol and the High Sheriffs of Bristol and Wiltshire.
Addressing those gathered, Bishop Viv said: "This is a service filled with celebration and prayer which marks the beginning of my public ministry in this Diocese. I am grateful for the many ecumenical and diocesan representatives who are supporting me in the service and will be assisting in the worship.
"I do look forward with great anticipation to all that lies ahead for the Diocese of Bristol. I have been sustained by the welcome I have received and the assurance of the prayers of so many, and continue to hold the Diocese in my prayers."
She'll now officially begin her work across the diocese which covers churches across Bristol, Swindon, North Wiltshire and South Gloucester.
She'll also take her seat in the House of Lords later this week.
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