The inaugural three-day event, involving communities from England and Wales, featured competitive sports - all Whitchurch versus Whitchurch.
Organisers also received a message of support from the mayor of Whitchurch-Stoufville, in Canada.
The next event is already being planned in Shropshire for 2017.
The places represented were in Shropshire, Oxfordshire, Warwickshire, Buckinghamshire, Somerset, Herefordshire, Dorset, Cardiff, Cardigan and St David's.
Competitors took part in archery, bowls, tug-of-war and a bake-off. Non-competitive activities included a vintage car parade and live music.
Organising committee member Paul Driver said: "We were just looking for something unique and the amount of times we got contacted by other Whitchurches looking for the wrong venue, we just thought, that's got to be something different, let's get them all together.
"'Come on Whitchurch' is all you can hear, which is great. Everybody is being cheered on.
"We had a great response to this. We said it's something we envisage taking place every two years and this week, luckily, Shropshire have said they want to be the hosts next time so we are all looking forward already for two years time."

McDowell, who was risen to 55th in the world rankings, finished with a one-under-par 69 to finish five strokes behind winner Adam Scott.
The Portrush player had started the day at three under, after an impressive 67 on Saturday.
It qualifies the 36-year-old for the WGC-Cadillac Championship which starts at Trump Doral on Thursday.
McDowell started his round with a birdie three on the first, and then bogeyed the fifth and birdied the eighth to reach the turn in one-under 34.
A dropped shot on 12 was recovered with birdie on the 13th to move into a top-five position.
Defending champion Padraig Harrington finished 43rd in the West Palm Beach tournament after a closing 71 put him on four-over-par 284.
People from 11 towns, villages and suburbs all called Whitchurch, have gathered in Whitchurch, Hampshire, for the Worldwide Whitchurch Weekend.
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Northern Ireland's Graeme McDowell has been buoyed by finishing fifth at the Honda Classic in Florida.