In December 1910 Ryle was appointed Dean of Westminster.
He was installed in Westminster Abbey in April 1911, at a time when the building was being prepared for the coronation of King George V. He was created CVO in 1911.
Under his guidance and with the help of his advisers, the dignity of the abbey services was notably increased, and his work was commemorated by the Dean Ryle Fund, a sum of £170,000 raised for the maintenance of the abbey in response to an appeal issued by him in 1920.

During World War I Ryle used to take the midday service of intercession personally, and he was responsible for the many special services held in wartime.

The idea of a Tomb of The Unknown Warrior was first conceived in 1916 by David Railton, who, while serving as an army chaplain on the Western Front, had seen a grave marked by a rough cross, which bore the pencil-written legend 'An Unknown British Soldier'.
He wrote to Ryle in 1920 proposing that an unidentified British soldier from the battlefields in France be buried with due ceremony in Westminster Abbey "amongst the kings" to represent the many hundreds of thousands of Empire dead.
The idea was strongly supported by Ryle and the then Prime Minister David Lloyd George.
There was initial opposition from King George V (who feared that such a ceremony would reopen the wounds of a recently concluded war) and others but a surge of emotional support from the great number of bereaved families ensured its adoption.
The inscription on the tomb was composed by Ryle.

Ryle withheld permission for the remains of Lord Byron to be interred in the abbey on the grounds that he considered Byron to be an inappropriate person for such an honour.

Ryle was created KCVO in 1921.
He was dean at the Wedding of Prince Albert, Duke of York, and Lady Elizabeth Bowes-Lyon.

He had never been strong and had a history of heart trouble.
In the autumn of 1924 his health broke down.
After five months in a nursing home at Bournemouth he returned in May 1925 to the deanery, where he died on 20 August.
He was buried on 25 August in Westminster Abbey in a spot close to the tomb of The Unknown Warrior.
His wife survived him.

Dean Ryle Street in Westminster is named after him.
In December 1910 Ryle was appointed Dean of Westminster. He was installed in Westminster Abbey in April 1911, at a time when the building was being prepared for the coronation of King George V. He was created CVO in 1911. Under his guidance and with the help of his advisers, the dignity of the abbey services was notably increased, and his work was commemorated by the Dean Ryle Fund, a sum of £170,000 raised for the maintenance of the abbey in response to an appeal issued by him in 1920. 
During World War I Ryle used to take the midday service of intercession personally, and he was responsible for the many special services held in wartime.
The idea of a Tomb of The Unknown Warrior was first conceived in 1916 by David Railton, who, while serving as an army chaplain on the Western Front, had seen a grave marked by a rough cross, which bore the pencil-written legend 'An Unknown British Soldier'. He wrote to Ryle in 1920 proposing that an unidentified British soldier from the battlefields in France be buried with due ceremony in Westminster Abbey "amongst the kings" to represent the many hundreds of thousands of Empire dead. The idea was strongly supported by Ryle and the then Prime Minister David Lloyd George. There was initial opposition from King George V (who feared that such a ceremony would reopen the wounds of a recently concluded war) and others but a surge of emotional support from the great number of bereaved families ensured its adoption. The inscription on the tomb was composed by Ryle.
Ryle withheld permission for the remains of Lord Byron to be interred in the abbey on the grounds that he considered Byron to be an inappropriate person for such an honour.
Ryle was created KCVO in 1921. He was dean at the Wedding of Prince Albert, Duke of York, and Lady Elizabeth Bowes-Lyon.
He had never been strong and had a history of heart trouble. In the autumn of 1924 his health broke down. After five months in a nursing home at Bournemouth he returned in May 1925 to the deanery, where he died on 20 August. He was buried on 25 August in Westminster Abbey in a spot close to the tomb of The Unknown Warrior. His wife survived him.
Dean Ryle Street in Westminster is named after him.
Herbert Edward Ryle