The London, Midland and Scottish Railway (LMS) Rebuilt Jubilee Class consisted of two 4-6-0 steam locomotives.

Both were rebuilt in 1942 from the LMS Jubilee Class engines—5736 Phoenix in April 1942 and 5735 Comet a month later.

Both Jubilees had been built in 1936 at Crewe Works, and therefore their original type 3A boilers were not life expired and hence were refurbished and reused on different engines rather than being scrapped.

These two one-offs were have said to be a direct upgrade in performance in both power and steaming abilities from the non-rebuilt Jubilees, and similar in performance to the Rebuilt Patriot Class, however they were 3 tons heavier than the non-rebuilds, thus limiting their route availability.

From 1943, it was decided not to repeat the conversion on the remaining 189 members of the Jubilee Class.