The Midland Railway 1377 Class was a class of 185 0-6-0T tank locomotives. They were introduced in 1878 by Samuel W. Johnson and were almost identical to the 1102 class of 1874; the latter having fully enclosed cabs, while the 1377 class were built without a rear to the cab and only a short cab roof, hence their nickname "half-cabs". They were given the power classification 1F.

All 185 passed to the London, Midland and Scottish Railway (LMS) at the grouping in 1923. Withdrawals started in 1927 and by 1948 when the railways were nationalised, 72 locomotives passed into British Railways ownership in 1948 and they allocated numbers 40000 higher than their LMS numbers, although 14 were withdrawn before the new numbers were applied. Withdrawals continued and by 1961 only 11 remained; the last five were withdrawn in September 1965. The class had only lasted as long as it had because the Midland Railway had signed a contract in 1866 to provide shunting engines to Staveley Ironworks for 100 years; the 1Fs, as they were by then, were the only locomotives suitable to perform this duty.

One of the Staveley engines survived into preservation.