In 1946 Undine returned from the Far East and went into reserve at Harwich.
In May 1949 she underwent a refit at Chatham and between 1950 and 1952 was in the Sheerness reserve.
 From 1952 to 1954 she was converted into a Type 15 fast anti-submarine frigate, by John I. Thornycroft & Company and allocated the new pennant number F141.

After re-commissioning in 1954 she was part of British 6th Frigate Squadron in the Mediterranean until 1960.
In November 1956 she was part of the Royal Navy's forces that took part in the Suez Crisis.
In the years 1958/59 she undertook bombardments of EOKA's positions in the Cyprus mountains.
In 1946 Undine returned from the Far East and went into reserve at Harwich. In May 1949 she underwent a refit at Chatham and between 1950 and 1952 was in the Sheerness reserve.  From 1952 to 1954 she was converted into a Type 15 fast anti-submarine frigate, by John I. Thornycroft & Company and allocated the new pennant number F141.
After re-commissioning in 1954 she was part of British 6th Frigate Squadron in the Mediterranean until 1960. In November 1956 she was part of the Royal Navy's forces that took part in the Suez Crisis. In the years 1958/59 she undertook bombardments of EOKA's positions in the Cyprus mountains.
HMS Undine (R42)