Llanishen (Welsh: Llanisien llan church + Isien Saint Isan) is a district of the city of Cardiff, Wales.

Parc Ty Glas
Southwest Llanishen hosted a World War II Royal Ordnance Factory, ROF Cardiff, which in 1987 became an Atomic Weapons Establishment. It closed down and later became the Parc Ty Glas business park.

Parc Ty Glas is now home to the offices of S4C (a television station relaying Channel 4 content with its own Welsh language programming), and the National Eisteddfod of Wales, as well as a recent branch of Marks and Spencer Simply Food. Also on the site are government buildings, mostly occupied by the HM Revenue and Customs (mainly Revenue division � including an enquiry centre, or IREC).

Schools
Primary:

• Cefn Onn
• Christ the King R.C. Primary School
• Coed Glas
• Ysgol y Wern

Secondary:

• Llanishen High School

Transport
The area can be reached by rail via Llanishen railway station at the eastern end of the area and Ty Glas railway station, and by bus along routes 27, 28, 29, 29B and 86.

Representation
Since June 2004 Llanishen has been represented by 4 Conservative Councillors: Jon Burns, Richard Foley, Craig Piper and Bob Smith.

Represented in the Welsh Assembly since 1999 by Jonathan Morgan AM (South Wales Central)

Leisure
Llanishen Sailing Centre based at Llanishen Reservoir is one of Wales' leading Sailing Schools which enjoys an international reputation. The reservoirs are also used extensively for fly-fishing, but are currently under threat from a commercial development for domestic housing.

Llanishen Leisure Centre is situated in Llanishen. It has a pool, Squash courts, multi-activity Sports Hall, a recently refurbished Gym & Fitness suite, two Snooker Tables and Lounge Bar & Pool Side Cafeteria.

Skate Park Facilities: 2 Quarter-pipes / Jump box / 2 flat banks / Driveway / Spine

 Golf:
 Llanishen Golf Club
       Lisvane
       Cardiff
       CF14 9UD
       02920 755078

 Libraries:
 Llanishen Library
       31 Kimberley Terrace
       Llanishen
       Cardiff
       CF14 5EA
       029 2075 0634
       Monday 2.00-6.00
       Tuesday Closed 
       Wednesday 9.00-1.00
       Thursday Closed  
       Friday 2.00-6.00
       Saturday 9.00-1.00 2.00-5.30

 Rugby: Llanishen RFC

 Taxis:
 G Evans Contracts Ltd
       16 Heathbrook
       Llanishen
       Cardiff
       South Glamorgan
       CF14 5FA
       029 2068 9452

 Vets:
 The Cardiff Cat Clinic
       Bridge House
       Station Rd
       Llanishen
       Cardiff
       South Glamorgan
       CF14 5UW
       029 2076 1600