No, in 2026, Stratford (London) does NOT count as a "London Terminal" for most National Rail tickets. The 18 official "London Terminals" (such as Waterloo, Victoria, Euston, and Liverpool Street) are the specific end-points of the UK’s radial rail lines located in central London (Zone 1). While Stratford is a massive "East London" hub, it is located in Zone 2/3. If your ticket says "London Terminals," it typically allows you to travel to the central station that serves your specific route (e.g., a ticket from Cambridge to "London Terminals" is valid for Liverpool Street or Kings Cross). To reach Stratford using such a ticket, you would often have to pay an extra "add-on" fare or use your Contactless/Oyster card for the final leg. However, if you are traveling on the High Speed 1 (HS1) line from Kent, your ticket may specifically list Stratford International, which is a separate station nearby. For the 2026 traveler, the high-value "win" is using a Travelcard or Contactless to navigate between Stratford and the Terminals, as the "London Terminals" ticket designation is strictly a legacy rail-fare rule.