| Word | Date | Name |
| Country | Title |
| Obeng | 2 August 2007 | Esther Obeng DAPAAH |
| Ghana | Minister of Lands, Forestry, & Mines |
| Obert | 1 March 2007 | Obert MPOFU |
| Zimbabwe | Minister of Industry & Trade |
| Obert | 26 April 2005 | Obert MPOFU |
| Zimbabwe | Minister of Industry & Trade |
| OBESTSEBI-LAMPTEY | 8 December 2006 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Diasporean Relations |
| OBESTSEBI-LAMPTEY | 27 November 2006 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Diasporean Relations |
| OBESTSEBI-LAMPTEY | 15 November 2006 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Diasporean Relations |
| OBESTSEBI-LAMPTEY | 19 October 2006 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Diasporean Relations |
| OBESTSEBI-LAMPTEY | 28 July 2006 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Diasporean Relations |
| OBESTSEBI-LAMPTEY | 2 May 2006 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Diasporean Relations |
| OBESTSEBI-LAMPTEY | 25 March 2005 | Jake OBESTSEBI-LAMPTEY |
| Ghana | Minister of Tourism & Modernization of the Capital City |
| OBHODJAS | 6 March 2008 | Salko OBHODJAS |
| Bosnia and Herzegovina | Minister of Spatial Planning |
| OBHODJAS | 4 February 2008 | Salko OBHODJAS |
| Bosnia and Herzegovina | Minister of Spatial Planning |
| OBHODJAS | 10 July 2007 | Salko OBHODJAS |
| Bosnia and Herzegovina | Minister of Spatial Planning |
| OBHODJAS | 2 May 2007 | Salko OBHODJAS |
| Bosnia and Herzegovina | Minister of Spatial Planning |
| OBHODJAS | 5 April 2007 | Salko OBHODJAS |
| Bosnia and Herzegovina | Minister of Spatial Planning |
| OBIANG | 25 August 2008 | Teodoro OBIANG Nguema Mbasogo, Brigadier General (Retired) |
| Equatorial Guinea | President |
| OBIANG | 25 August 2008 | Teodoro Nguema OBIANG Mangu |
| Equatorial Guinea | Minister of Agriculture & Forests |
| OBIANG | 24 January 2007 | Teodoro OBIANG Nguema Mbasogo, Brigadier General (Retired) |
| Equatorial Guinea | President |
| OBIANG | 24 January 2007 | Teodoro Nguema OBIANG Mangu |
| Equatorial Guinea | Minister of Agriculture & Forests |
| OBIANG | 13 September 2006 | Teodoro OBIANG Nguema Mbasogo, Brigadier General (Retired) |
| Equatorial Guinea | President |
| OBIANG | 13 September 2006 | Teodoro Nguema OBIANG Mangu |
| Equatorial Guinea | Minister of Agriculture & Forests |
| OBIANG | 15 June 2006 | Teodoro OBIANG Nguema Mbasogo, Brigadier General (Retired) |
| Equatorial Guinea | President |
| OBIANG | 15 June 2006 | Teodoro Nguema OBIANG Mangu |
| Equatorial Guinea | Minister of Agriculture & Forests |
| OBIANG | 14 December 2005 | Teodoro OBIANG Nguema Mbasogo, Brigadier General (Retired) |
| Equatorial Guinea | President |
| OBIANG | 14 December 2005 | Teodoro Nguema OBIANG Mangu |
| Equatorial Guinea | Minister of Agriculture & Forests |
| Obiang | 21 June 2004 | Obiang Nguema Mbasogo, Teodoro, Brigadier General (Retired) |
| Equatorial Guinea | President |
| Obiang | 21 June 2004 | Obiang Mangu, Teodoro Nguema |
| Equatorial Guinea | Minister of Agriculture & Forests |
| OBIANG | 10 March 2008 | Rene NDEMEZO OBIANG |
| Gabon | Minister of Youth, Sports, & Leisure, in Charge of Voluntary Organizations, & Government Spokesperson |
| OBIANG | 9 May 2007 | Rene Ndemezo OBIANG |
| Gabon | Minister in Charge of Relations with Parliament and Government Spokesperson |
| Obiang | 14 December 2004 | Obiang, Rene Ndemezo |
| Gabon | Minister in Charge of Relations with Parliament and Government Spokesperson |
| Obiaqeli | 6 June 2007 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 31 May 2007 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 16 January 2007 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 3 November 2006 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 23 October 2006 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 10 October 2006 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 11 September 2006 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Education |
| Obiaqeli | 4 August 2006 | Obiaqeli EZEKWASILI |
| Nigeria | Minister of Education |
| Obiaqeli | 7 July 2006 | Obiaqeli EZEKWASILI |
| Nigeria | Minister of Education |
| Obiaqeli | 3 March 2006 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Solid Minerals |
| Obiaqeli | 8 February 2006 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Solid Minerals |
| Obiaqeli | 21 December 2005 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Solid Minerals |
| Obiaqeli | 14 October 2005 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Solid Minerals |
| Obiaqeli | 7 September 2005 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Solid Minerals |
| Obiaqeli | 14 July 2005 | Obiaqeli EZEKWESILI |
| Nigeria | Minister of Solid Minerals |
| OBIDOV | 6 January 2006 | Okiljon OBIDOV |
| Uzbekistan | Minister of Labor & Social Security |
| OBIDOV | 2 December 2005 | Okiljon OBIDOV |
| Uzbekistan | Minister of Labor & Social Security |
| OBIDOV | 1 August 2005 | Okiljon OBIDOV |
| Uzbekistan | Minister of Labor & Social Security |
| OBIDOV | 31 May 2005 | Okiljon OBIDOV |
| Uzbekistan | Minister of Labor & Social Security |
| OBIDOV | 7 February 2005 | Okiljon OBIDOV |
| Uzbekistan | Minister of Labor & Social Security |
| Obie | 21 February 2007 | Obie WILCHCOMBE |
| Bahamas, The | Minister of Tourism |
| Obie | 28 August 2006 | Obie WILCHCOMBE |
| Bahamas, The | Minister of Tourism |
| Obie | 28 February 2006 | Obie WILCHCOMBE |
| Bahamas, The | Minister of Tourism |
| Obie | 2 March 2005 | Obie WILCHCOMBE |
| Bahamas, The | Minister of Tourism |
| OBIOZOR | 30 July 2007 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 6 June 2007 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 31 May 2007 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 16 January 2007 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 3 November 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 23 October 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 10 October 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 11 September 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 4 August 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 7 July 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 3 March 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 8 February 2006 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 21 December 2005 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 14 October 2005 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 7 September 2005 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 14 July 2005 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 5 April 2005 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIOZOR | 28 March 2005 | George OBIOZOR |
| Nigeria | Ambassador to the US |
| OBIRI | 5 August 2008 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| OBIRI | 15 May 2008 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| OBIRI | 25 April 2008 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| OBIRI | 4 March 2008 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| OBIRI | 10 January 2008 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| OBIRI | 20 December 2007 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| OBIRI | 2 August 2007 | Nana OBIRI BOAHEN |
| Ghana | Minister of State for Interior |
| Obleas | 5 July 2005 | Irma PEREDO Obleas |
| Bolivia | Minister of Sustainable Development |
| Obono | 15 June 2006 | Jesusa Obono ENGONO |
| Equatorial Guinea | Minister of Women's Affairs |
| Obono | 14 December 2005 | Jesusa Obono ENGONO |
| Equatorial Guinea | Minister of Women's Affairs |