Tramway Company Buttons - M to R

- Maidstone Corporation Tramways
- Manchester, Bury, Rochdale and Oldham Steam Tramways
- Manchester Carriage Company
- Manchester Carriage and Tramways Company
- Manchester Corporation Tramways
- Mansfield and District Light Railway
- Manx Electric Railway
- Marble Arch Street Rail Company
- Matlock Cable Tramway
- Methyr Tydfil Electric Tramways
- Metropolitan Electric Tramways
- Metropolitan Street Tramways
- Mexborough and Swinton Tramways
- Middlesbrough Corporation Tramways
- Middlesbrough, Stockton and Thornaby Electric Tramways
- Middleton Electric Tramways
- Midland Tramways Company
- Morecamble Corporation Tramways
- Morecambe Tramways
- Murcar Railway
- Musselburgh and District Tramways
- Neath and District Tramways
- Neath Corporation Tramways
- Nelson Corporation Tramways
- New St Helens and District Tramways Company
- Newcastle and Gosforth Tramways
- Newcastle-upon-Tyne Corporation Tramways
- Newport (County Borough of) Tramways
- Newport Tramways Company
- North Dublin Street Tramways Company
- North London Suburban Tramways Company
- North London Tramways Company
- North Metropolitan Tramways
- North Shields and District Tramways
- North Shields and Tynemouth District Tramways
- North Staffordshire Tramways
- Northampton Corporation Tramways
- Northampton Street Tramways
- Norwich Electric Tramways Company
- Nottingham and District Tramways
- Nottingham Corporation Tramways
- Nottinghamshire and Derbyshire Tramways
- Oldham, Ashton and Hyde Electric Tramways
- Oldham Corporation Tramways
- Oxford Tramways
- Paisley District Tramways
- Paisley Tramways Company
- Peckham and East Dulwich Tramways
- Perth and District Tramways
- Perth Corporation Tramways
- Peterborough Electric Tramways
- Pimlico, Peckham and Greenwich Street Tramways
- Plymouth Corporation Tramways
- Plymouth, Devonport and District Tramways
- Plymouth, Stonehouse and Devonport Tramways
- Plymouth Tramways Company
- Pontypridd and Rhondda Valley Tramway Company
- Pontypridd Urban District Council Tramways
- Poole and District Electric Tramways
- Portsdown and Horndean Light Railway
- Portsmouth [Borough], Kingston, Fratton and Southsea Tramways Company
- Portsmouth Corporation Tramways
- Portsmouth Street Tramways Company
- Potteries Electric Traction Company
- Preston Corporation Tramways
- Preston Horse Tramways
- Preston Tramways Company
- Pwllheli and Llanbedrog Tramway
- Pwllheli Corporation Tramways
- Rawtenstall Corporation Tramways
- Reading Corporation Tramways
- Reading Tramways Company
- Rhondda Tramways
- Rochdale Corporation Tramways
- Rochester Corporation Tramways
- Rossendale Valley Tramways
- Rotherham Corporation Tramways
- Rothesay Tramways Company
- Ryde Pier Tramway