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John Horn High School

Excellence Happens Here

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The entrance to Dr. John D. Horn High School under a cloudy sky.
 

John Horn High School
3300 East Cartwright Road
Mesquite, Texas, 75181

Phone 972.882.5200 
Fax 972.882.5292

Office Hours:
Monday through Friday
8 am - 4 pm

Summer Hours:
Monday through Thursday
7:30 am - 5 pm

 

 

A Message from the Principal of John Horn High School 

A woman with curly hair smiles, wearing a pink blazer and diamond-shaped earrings.

At John Horn High School, we believe in the power of potential, the strength of community, and the promise of every student’s future. Whether you are a returning Jaguar or new to our campus, you are an important part of a vibrant school family where excellence is the standard and growth is the goal.

Our staff is committed to the values that define who we are as Jaguars:

ROLE: We believe every Jaguar has unique talents and abilities, and everyone belongs here.

RESPONSIBILITY: We take initiative, hold ourselves accountable, and protect the family.

RELATIONSHIPS: Our bonds run deep—we invest in building strong, meaningful connections.

RESPECT: We always show respect to our school, each other, and our community.

As principal, I am honored to serve our students, families, and the Mesquite ISD community. I look forward to a school year filled with achievement, celebration, and meaningful connections. Let’s make it a great year—together.

With Jaguar pride,

Deeadra Brown
Phone: 972.882.2500
  |  Email