List of Secretaries General of ITU
| Directors of ITU |
|||
| Name |
Beginning of term |
End of term |
Country |
| Louis Curchod |
1 January 1869 |
24 May 1872 |
Switzerland |
| Karl Lendi |
24 May 1872 |
12 January 1873 |
Switzerland |
| Louis Curchod |
23 February 1873 |
18 October 1889 |
Switzerland |
| August Frey |
25 February 1890 |
28 June 1890 |
Switzerland |
| Timotheus Rothen |
25 November 1890 |
11 February 1897 |
Switzerland |
| Emil Frey |
11 March 1897 |
1 August 1921 |
Switzerland |
| Henri Étienne |
2 August 1921 |
16 December 1927 |
Switzerland |
| Joseph Raber |
1 February 1928 |
30 October 1934 |
Switzerland |
| Franz von Ernst |
1 January 1935 |
31 December 1949 |
Switzerland |
| Secretaries general |
|||
| Léon Mulatier |
1 January 1950 |
31 December 1953 |
France |
| Marco Aurelio Andrada |
1 January 1954 |
18 June 1958 |
Argentina |
| Gerald C. Gross |
1 January 1960 |
29 October 1965 |
United States |
| Manohar Balaji Sarwate |
30 October 1965 |
19 February 1967 |
India |
| Mohamed Ezzedine Mili |
20 February 1967 |
31 December 1982 |
Tunisia |
| Richard E. Butler |
1 January 1983 |
31 October 1989 |
Australia |
| Pekka Tarjanne |
1 November 1989 |
31 January 1999 |
Finland |
| Yoshio Utsumi |
1 February 1999 |
31 December 2006 |
Japan |
| Hamadoun Touré |
1 January 2007 |
present |
Mali |