Great Irish pub in the heart of the city next to the Faneuil Hall-Quincy market area. Great fun place. Also serve up a delicious Full Irish Breakfast.
Even though its probably NOT the reason you came to Zurich, if you want to head to a bar/pub with fun atmospheres, good drinks and pub food and where people speak English then here are a few suggestions:
Paddy Reilly's (everyone calls it Dubs, short for Dubliner's, still though): http://www.paddys.ch/zuerich/
Probably the best one and my favorite watering hole.
Talstrasse 82
8001 Zürich
Oliver Twist: http://www.pickwick.ch/zuerich/
Great place aswell, bit smaller, amazing Aussie style burgers!
Rindermarkt 6
8001 Zürich
The Lion: http://zuri.net/adr/24208/the_lion.htm
Slightly more upscale, winebar/pub. Still awesome spot, right off the Bahnhofstrasse.
Uraniastrasse 9
8001 Zürich
Big Ben: http://www.bigbenpubzurich.ch/
Great little English pub right on one of the most happening streets in Zurich.
Niederdorfstrasse 52
8001 Zurich
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