4 - 5 May: Magnificent Motors, Eastbourne seafront, East Sussex.
4 - 6 May: Llandudno Transport Festival, Bodafon Fields, Llandudno, North Wales.
4 - 6 May: A busman's holiday at the Trolleybus Museum at Sandtoft, near Doncaster. Lincolnshire.
5 May: Glasgow Vintage Vehicle Trust Bridgeton Bus Depot Open Sunday. Glasgow.
5 May: Essex bus day, Museum of Power, Maldon. Essex (tbc).
5 May: Oxford Bus Museum Free bus rides. Oxford.
5 May: The Cardiff Transport Preservation Group Spring heritage bus event marking 100 years of Merthyr Tydfil's buses, at Barry Bus Depot, Broad Street, Barry. CF62 7AH.
5 May: 52nd Ipswich to Felixstowe Vehicle Run, Ipswich Transport Museum. Suffolk.
5 May: *NEW*50th anniversary event of Southdown route 740 with a selection of classic Leyland and Bristol buses in service.
5 May: Keighley Bus Museum open day from 10.00 to 16:00 celebrating 100 years of Keighley buses, with free trips around Keighley on Keighley/West Yorkshire buses. Refreshments and stalls available. Unit 5, Riverside Technology Park, Riverside, Keighley, West Yorkshire BD21 4JP.
6 May: Oxford Bus Museum Bank holiday bus rides. Oxford.
11 May: "Wales on Wheels", jointly run by Swansea Bus Museum, Road Transport History Association,Swansea Museum and based at the National Waterfront Museum and Dylan Thomas Square. Free admission and free heritage bus rides. South Wales.
11 May: Model Bus 2024, Salvation Army Hall, Wawn St, South Shields.
11 May: The Omnibus Society, Eastern and Southern branch meeting in Chelmsford. Essex.
11 May: Delaine Bus Museum Open Day 1200-1600, Admisson £2.50, includes heritage bus ride. Bourne, Lincolnshire.
11 - 12 May: 1960s weekend event, at East Anglia Transport Museum, near Lowestoft. Suffolk.
12 May: Classic Bus and Coach Rally, Ecclesbourne Valley Railway, Wirksworth Station, Derbyshire.
12 May: Annual London to Brighton Run, Historic Commercial Vehicle Society. Sussex.
12 May: United Counties preservation group vintage bus day at Dereham Station, Mid Norfolk Railway. Norfolk
12 May: Oxford Bus Museum Spring running day; 75 years of the AEC Regent V and 50 years of Oxford Park and Ride service. Oxford.
12 May: Vintage Bus Day, Mid Norfolk Railway, Dereham Railway Station, Norfolk.
12 May: Running day recreating Wilts and Dorset route 6, between Marlborough and Amesbury with an additional rural 479 on the "Rockley Rambler" (serves Hackpen White Horse).
15 May: The Omnibus Society, Herts and Beds branch meeting in Luton. Bedfordshire
17 - 19 May: National Transport Trust Vintage Transport Festival at Fawley Hill, near Henley-on-Thames, Buckinghamshire.
18 May: Abingdon Air and Country Show, Abingdon Airfield (Dalton Barracks), Oxfordshire.
18 - 19 May: Listerfest event, Apedale Valley Light Railway. Staffordshire.
18 - 19 May: Bedford OB celebration at Wythall transport museum..
19 May: Basingstoke Festival of Transport and Autojumble, War Memorial Park. Hampshire.
19 May: Isle of Wight Festival of Transport, c/o Isle of Wight Steam Railway.
19 May: Chiltern Hills Rally, Weedon Park, near Aylesbury, Buckinghamshire.
19 May: Morecambe wintage bus day, Ribble Vehicle Preservation Trust. Morecambe Football Club and the Promenade, Morecambe from 09.30 to 17.00. Lancashire.
19 May: Aldridge Transport Museum, Art in the museum, 10:00 to 16:00. Aldridge, near Walsall WS9 8TP. West Midlands
19 May: Southsea Sea Front Service, City of Portsmouth Preserved Transport Depot. Hampshire.
25 - 27 May: 6 wheeler event at the Trolleybus Museum at Sandtoft, near Doncaster. Lincolnshire.
26 - 27 May: Bank Holiday open weekend including route 50 tribute at Wythall transport museum. Worcestershire.
27 May: Model Bus Federation event including a working N gauge Eheim trolleybus system at Wythall transport museum. Worcestershire.
27 May: Volvo and Scania running day, Nottingham Heritage Vehicles Charity. Heritage Bus Depot, Portland Road, Hucknall. Nottinghamshire.
27 May: Oxford Bus Museum Show and tell, meet conductor Bear. Oxford.
25 - 31 May: Seaside Fun, Crich Tramway Village, Derbyshire.