Route 6 is a partially open trunk route in Hong Kong, planned to be completed in its entirety in 2026. It is the newest trunk route to be numbered under the Strategic Route Number System. The section between Tseung Kwan O and Lam Tin consisting of the new Cross Bay Link and Tseung Kwan O–Lam Tin Tunnel opened to traffic on 11 December 2022, while the Yau Ma Tei Section of the Central Kowloon Bypass opened on 21 December 2025. Its western and eastern termini are at the intersection with Route 3 in West Kowloon and the Tseung Kwan O Interchange of the Cross Bay Link, respectively. Although not officially part of Route 6, the Cross Bay Link carries traffic further to its two eastern terminus, one at Po Shun Road in Tseung Kwan O and the other at Wan O Road in LOHAS Park.