SMKDJ has been blessed with superb leadership. In the past 23 years, ten remarkable principals have served SMK Damansara Jaya. All of them have left their mark, created a a tradition of excellence which have benefited students by and large. The following are their names:
1st Principal
Encik Abu Sujak Haji Mohammad Noor (01/01/1983 hingga 31/03/1983)
- Has served as assistant pricipal in Sekolah Menengah Abdul Jalil (Hulu Langat)
- Sekolah Menengah Damansara Jaya’s first pioneer
- Created the school badge, school flag and the school mascot
2nd Pricipal
Encik Rosley Ariffin (01/04/1983 hingga 31/12/1983)
- Started serving on 1st April 1983
- Has worked in Sekolah Menengah Ulu Kelang
3rd Principal
Tuan Haji Ahmad bin Mansor (01/01/1984 hingga 31/12/1983)
- Started work on 1st Jnuary 1984
- Became an assistant principal in Sekolah Menengah Selayang Baru
4th Pricipal
Encik Kevin De Souza (01/01/1986 hingga 31/12/1987)

- Started serving in this school on 1st January 1986
- Launched the Class Association Project. It was necessary for every class to have a class monitor, assistant class monitor and committee members which consist of a class monitor, assistant class monitor, class discipline committee, class cleanness committee, and a class curriculum committee
- On 31st March 1987, he was transferred to Sekolah Menengah Keramat
5th Principal
Tuan Haji Mohammad Yusof bin haji Mohammad (01/04/1987 hingga 31/04/1988)
- Started serving on 1st April 1987
- He enlarged the library and an art room was set up in August 1987
- Construction works on Block C was started
6th Principal
Tuan Haji Wan Mohamed Haji Abdullah(01/02/1988 hingga 31/07/1991)

- Has served in the Selangor Education Ministry as Assistant Principal Director
- Raised the achievements in academic and non academic
- Sekolah Menengah Damansara Jaya was declared Country’s School of Hope on 8th June 1990
7th Principal
Tuan Haji Bekri Salikin (01/08/1991 hingga 31/02/1991)
- Started serving in this school on 1st November 1991
- Was transferred to another school 15th February 1992
8th Principal
Tuan Haji Kusno Haji Ahmad Sabilan (01/04/1992 hingga 31/12/1994)

- Started serving on 16th April 1992
- Built a pond to beautify the school
9th Principal
Datin Hajah Hamidah bt. Nordin (01/02/1995 hingga 31/12/2003)

- Started serving since 1 February 1995
- First lady Principal of this school
10th Principal
Pn. Lee Mei Leng (01/01/2004 hingga 31/12/2006)

- Started since 21 April 2004
- Has improved the cleanlines and physical appreance of the school canteen
- Tiled up the strategic pathways in the canteen, office, and the new computer lab
- Renovations and extended the Bilik Gerakan
- Created a decorative room for students within the Bilik Gerakan
- Covered all the internal drains in the canteen due to safety reasons
- Started the SMK Damansara Jaya Sdn. Bhd. Coperation
- Fine tuned the concept of school in the garden by reviving the Eight Gardens in the school
- Introduced the use of school diaries among students and teachers
- To encourage further enhancement of the school indentity and acquirement if soft laid via the Merit-Demerit system
- Defined the qualities of a true excellent Dj-ian
- Improved the service of the school office
- Introduced the Boimetric system of checking in and out staff
- Created the Computer Room for teachers and a Record Room for students
- Has initiated the school expansion programme by preparing the working paper for RMIC9
- Has approved the blocks of 3 storey buildings costing RM 4 million to be built in 2007 to replace Blocks D, E and Bengkel K.H.
11th Principal
Datin Wira Hjh Norizan Bt Kamarudin (01/01/2007 hingga sekarang)