Bell Telephone Company can refer to:

• The Bell System, a name and trademark formerly given to AT&T.
• Bell Canada
• Bell Telephone Manufacturing Company, a former company in Antwerp (Belgium), now part of Alcatel
• The original Bell Telephone Company was founded in 1878 by Alexander Graham Bell's father in law Gardiner Greene Hubbard who also helped organized a sister company the New England Telephone and Telegraph Company. The two companies merged in 1879 to form the National Bell Telephone Company which in 1880 merged with others to form the American Bell Telephone Company which became the American Telephone and Telegraph Company which became AT&T.