Olleh

Olleh is a brand name previously used by the South Korean telecommunications company KT Corp. The term is derived from the Korean word for "hello" spelled backward, a choice intended to symbolize bidirectional communication and openness. Introduced as a marketing umbrella for consumer-facing services, Olleh was used to present KT’s offerings in a unified, user-friendly way across multiple product lines.

Under the Olleh umbrella, KT marketed a range of services including mobile telecommunications, fixed broadband, home internet, television, and digital media services. The branding extended to public Wi‑Fi efforts, notably the Olleh WiFi network that KT promoted for widespread access. In the years that followed, the Olleh identity was gradually integrated into KT’s broader corporate branding, with some services continuing to use the Olleh designation while others adopted or returned to the KT name. Today, Olleh is primarily encountered as a historical or marketing reference within KT’s past consumer product lines, rather than as a distinct, active corporate entity.