| Consort: | yes |
| Intan Zaharah Malay: {{Script|Arab|اينتن زهرة | |
| Succession: | Raja Permaisuri Agong of Malaysia |
| Reign: | 21 September 1965 – 20 September 1970 |
| Cor-Type: | Installation |
| Predecessor: | Tengku Budriah |
| Successor: | Tuanku Bahiyah |
| Succession1: | Tengku Ampuan Besar of Terengganu |
| Reign1: | 6 June 1949 – 20 September 1979 |
| Successor1: | Tengku Ampuan Bariah |
| Succession2: | Tengku Ampuan of Terengganu |
| Reign2: | 20 September 1979 – 14 May 1998 |
| Successor2: | Tengku Ampuan Bariah |
| Succession3: | Tengku Ampuan Tua of Terengganu |
| Reign3: | 14 May 1998 – 24 January 2015 |
| Full Name: | Tengku Intan Zaharah binti Tengku Hitam Omar |
| Regnal Name: | Tengku Ampuan Besar Tengku Intan Zaharah binti Almarhum Tengku Seri Setia Raja Tengku Hitam Omar |
| Father: | Tengku Seri Setia Raja Tengku Hitam Omar bin Al-Marhum Tengku Muda Osman |
| Mother: | Raja Zainab binti Al-Marhum Raja Alang |
| Birth Date: | 13 April 1928 |
| Birth Place: | Singapore |
| Death Place: | Pantai Hospital, Kuala Lumpur, Malaysia |
| Date Of Burial: | 25 January 2015 |
| Place Of Burial: | Abidin Mosque, Kuala Terengganu, Terengganu, Malaysia |
| Religion: | Sunni Islam |
Tengku Ampuan Tua Tengku Intan Zaharah binti Almarhum Tengku Seri Setia Raja Tengku Hitam Omar (Jawi: Malay: تڠكو امڤوان توا تڠكو اينتن زهرة بنت المرحوم تڠكو سري ستيا راج تڠكو هيتم عمر; 13 April 1928 – 24 January 2015) was the Tengku Ampuan Tua (Grand Queen Dowager) of Terengganu.[1] She was formerly the Tengku Ampuan Besar (Queen consort) of Terengganu from 1945 to 1979, the Tengku Ampuan (Queen Dowager) of Terengganu from 1979 to 1998 and Tengku Ampuan Tua (Grand Queen Dowager) of Terengganu from 1998 until her death in 2015. She also served as the fourth Raja Permaisuri Agong of Malaysia from 1965 to 1970.
Tengku Intan was born in Singapore on 13 April 1928. Her father, Tengku Seri Setia Raja Terengganu Tengku Hitam Omar, was a member of the Singapore (Johor Bendahara Horeh) royal family, serving in the Terengganu State Civil Service as the State Secretary of Terengganu; he was exiled since the death of the last Sultan of Singapore, Alauddin Alam Shah, in 1897. Her mother was Raja Zainab binti Raja Alang (second wife of her father).
Tengku Intan received her education at the Malay School in Telok Kurau and Katong Convent, Singapore.
Tengku Intan married Sultan Ismail Nasiruddin Shah ibni Almarhum Sultan Zainal Abidin III (then Tengku Paduka Raja of Terengganu) on 3 April 1944 as his second wife. She had no children with him.
On 5 November 1945 the Terengganu State Council of thirteen members announced the dismissal of Sultan Ali Shah and the appointment of Tengku Ismail as the fifteenth Sultan of Terengganu. Tengku Ismail became known as Sultan Ismail Nasiruddin Shah and was installed on 6 June 1949 at Istana Maziah, Kuala Terengganu.[2]
Accordingly, Tengku Intan Zaharah became Tengku Ampuan Besar (Queen) of Terengganu. Tengku Intan served as Raja Permaisuri Agong during her husband's reign as the fourth Yang di-Pertuan Agong or King of Malaysia.
In 1979, upon her husband's death she was created Tengku Ampuan (Queen Dowager) of Terengganu. In 1998, on the death of her stepson, Sultan Mahmud Al-Muktafi Billah Shah, she became Tengku Ampuan Tua (Grand Queen Dowager) of Terengganu.[3]
Tengku Ampuan Tua Tengku Intan Zaharah died on 24 January 2015 at 3:30 pm in Hospital Pantai, Kuala Lumpur due to pneumonia. She was 86 years old. Her body was brought back to Terengganu and was laid to rest beside her husband grave, Sultan Ismail Nasiruddin Shah at the Royal Mausoleum near Abidin Mosque, Kuala Terengganu.
Germany
Indonesia
Japan
PhilippinesSeveral places were named after her, including: