JNB Views 9 meanings found JNB commonly refers to Johannesburg, South Africa, especially its airport code, and is also seen in banking names, a computing instruction, and an academic journal. Miscellaneous Jacqueline Nicole Brown Janice and Nolan Braud Juice n Bun Academic & Science Journal of Nutritional Biochemistry Regional Johannesburg, South Africa Computing Jump If Not Below Java News Brief Business Jordan National Bank Japan Net Bank