The Olympian had the same chassis and running gear as the Leyland Titan integral double deck bus which was ordered in large numbers by London Transport.

The last remaining Leyland Olympians in regular revenue-earning service were withdrawn by Rotala-owned Preston Bus in December 2016.

[8] The state-owned Urban Transport Company (Greek: Επιχείρηση Αστικών Συγκοινωνιών [el], ΕΑΣ) of Athens received 20 Leyland Olympians in 1983, with one being a demonstrator model delivered to the operator for trials in 1982.

[10][11] Some were later repatriated to the United Kingdom, including 22 converted to open top configuration by The Big Bus Company.

[12][13] All 35 three-axle Olympians passed to New World First Bus, with the entire batch of ten non-air-conditioned buses being sold to FirstGroup who repatriated them to the United Kingdom for use at their East Counties, Glasgow, Manchester and PMT subsidiaries.

In the early to mid 1990s, selected 2-axle Leyland Olympians were converted to open-top for use on private hire services, complementing the operator's AEC Routemasters, however these were withdrawn gradually after 2001.

The non-franchised, open-topped, air-conditioned double deckers and private hire buses were withdrawn by 2015 due to their non-compliance with Hong Kong's emission regulations.

[16][17] In 1984, an Eastern Coach Works bodied left hand drive Olympian was sent to the United States as a demonstrator.

After a period in store, the three Seattle units were repowered with Detroit Diesel engines in Los Angeles and returned to Gray Line duties in San Francisco in 2015.

[20] Singapore Bus Services (SBS) received a single Leyland Olympian B45 for evaluation in 1981.

Registered between 1986 and 1988, these Olympians were deployed to Toa Payoh, Ang Mo Kio and Jurong bus depots.

In 1992, SBS ordered another 200 Leyland Olympians, all of which were fitted with the then all new Walter Alexander Royale bodywork.

Registered between 1993 and 1994, they were Singapore's first air-conditioned and tri-axle double deck buses and hence dubbed the "Superbus" owing to their length at the time.

SBS9168S, the last Leyland Olympian built, was repatriated to England in 2013 and is currently preserved by Dave Rogers and re-registered as L888 SBS.

[22] In 1988, Leyland was purchased by Volvo, who only continued with the Olympian and Lynx due to the vast number of outstanding orders.