Alchevsky is a surname and may refer to:

• Hryhory Alchevsky (Григорій Олексійович Алчевський; 1866–1920), Ukrainian composer
• Oleksiy Alchevsky (Алчевський Олексій Кирилович; 1835–1901), Ukrainian entrepreneur, philanthropist, and industrialist

• Henry Maitland, 1st Baron Wilson of Libya and of Stowlangtoft Wilson
• Henry Maitland Wilson
• Henry Major Tomlinson
• Henry Mallon
• Henry Mancini
• Henry Manners, 2nd Earl of Rutland
• Henry Manners, 8th Duke of Rutland
• Henry Mannox
• Henry Marc Brunel
• Henry Marie Joseph Millon de Montherlant
• Henry Markham
• Henry Markovitz
• Henry Marney, 1st Baron Marney
• Henry Marny, 1st Baron Marny
• Henry Marny, 1st Lord Marny
• Henry marrow
• Henry Marshall Tory
• Henry Marshall Tory Medal
• Henry Marten
• Henry Marten (politician)
• Henry Marten (regicide)
• Henry Martin Hoyt
• Henry Martin Jackson
• Henry Martyn
• Henry Martyn Baird