Tebing Tinggi Deli, officially known as Tebing Tinggi City or simply Tebing Tinggi, is a city located near the eastern coast of the North Sumatra Province in Indonesia. It functions as an enclave within the Serdang Bedagai Regency.
The city covers a total area of 38.44 km2. According to census data, its population grew from 145,180 in 2010 to 172,838 in 2020, with an official estimate reaching 184,893 as of mid-2025.