1910 in the Royal Navy

January

5 January.
- Rear-Admiral F. C. Doveton Sturdee succeeded Rear-Admiral Charles J. Briggs as Rear-Admiral of the First Division, Home Fleet.
- Rear-Admiral Arthur A. C. Galloway succeeded Rear-Admiral Cecil Burney as Rear-Admiral in command of the Devonport Division, Home Fleet.
24 January. Admiral of the Fleet Lord Fisher stood down as First Sea Lord. Vice-Admiral Sir Arthur Winsloe steps down as Fourth Sea Lord
25 January. Admiral of the Fleet Sir Arthur Knyvet Wilson appointed First Sea Lord. Captain Charles E. Madden appointed Fourth Sea Lord.
26 January. Results of Gunlayers' Tests with Heavy Guns issued.

6 March. Vice-Admiral Sir Arthur L. Winsloe succeeded Vice-Admiral the Hon. Sir Hedworth Lambton as Commander-in-Chief on the China Station.

29 April. Argo Company accepts Board of Admiralty's offer to purchase forty-five Argo rangefinder mountings and indicators over the next three years at £1,350 each, with £15,000 paid in advance.
30 April. Admiral Sir Edmund S. Poë succeeded Admiral the Hon. Sir A. G. Curzon-Howe as Commander-in-Chief of the Mediterranean Fleet.

9 August.
- Vice-Admiral Sir George A. Callaghan succeeded Vice-Admiral Sir Berkeley Milne as Second-in-Command, Home Fleet.
- Rear-Admiral T. H. Martyn Jerram succeeded Vice-Admiral Callaghan as Second-in-Command, Mediterranean Fleet.
26 August. Rear-Admiral Sackville H. Carden succeeded Rear-Admiral Sir Colin R. Keppel as Second-in-Command of the Atlantic Fleet.

20 September. Lionel G. Tufnell succeeded Rossyn E. Wemyss as Commodore, Second Class at the Royal Naval Barracks, Devonport.
26 September. Rear-Admiral Sir Douglas A. Gamble relieved Sir Henry B. Jackson as Rear-Admiral Commanding, Sixth Cruiser Squadron.

19 October. Rear-Admiral George E. Patey relieved Rear-Admiral Edward E. Bradford as Rear-Admiral of the Second Division, Home Fleet.
25 October. Alexander L. Duff succeeded Christopher G. F. M. Cradock as Commodore, Second Class at the Royal Naval Barracks, Portsmouth.

17 November. Rear-Admiral Arthur H. Limpus succeeded Rear-Admiral Frederic E. E. Brock as Rear-Admiral in command of the Portsmouth Division, Home Fleet.
29 November. Rear-Admiral Sir George J. S. Warrender succeeded Rear-Admiral Robert S. Lowry as Rear-Admiral Commanding the Second Cruiser Squadron.

17 December. Rear-Admiral Paul W. Bush relieved Vice-Admiral George Le C. Egerton as Commander-in-Chief on the Cape of Good Hope Station.
20 December. Vice-Admiral (Acting) Sir John R. Jellicoe succeeded H.S.H. Prince Louis of Battenberg as Commander-in-Chief, Atlantic Fleet.
31 December. Vice-Admiral George F. King-Hall succeeded Sir Richard Poore as Commander-in-Chief on the Australian Station.