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Portuguese Water Dog

dog breed

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 27, 2026
Entity authorityQ38559 ↗
Source-derived summary

The Portuguese Water Dog (PWD; Portuguese: cão de água IPA: [ˈkɐ̃w dɨ ˈaɣwɐ]), also known as the Algarvian Water Dog (cão de água algarvio), or Portuguese Fishing Dog (cão pescador português), is a breed of dog that originated from the Algarve region of Portugal. From there the breed expanded to all around Portugal's coast, where they were taught to herd fish into fishermen's nets, retrieve lost tackle or broken nets, and act as couriers from ship to ship, or ship to shore.

Portuguese Water Dogs rode in fishing trawlers as they worked their way from the Atlantic waters of Portugal to the waters off the coast of Iceland fishing for cod.

The Portuguese Water Dog is a fairly rare breed; only 36 Portuguese Water Dogs were entered for Great Britain's Crufts competition in 2013. Though some breeders claim they are a hypoallergenic dog breed, there is no scientific evidence to support the claim that hypoallergenic dog breeds exist. Their non-shedding qualities have made them more popular in recent years.

The Portuguese Water Dog was the chosen breed of US President Barack Obama, who had two of them, Bo and Sunny. The Obama family chose Sunny for the breed's comparatively hypoallergenic nature, while Bo was given to them by Senator Ted Kennedy.

Description

In Portuguese, the Portuguese Water Dog is called cão de água (IPA: [ˈkɐ̃w dɨ ˈaɣwɐ]; literally 'dog of water'). In Portugal, the dog is also known as the Algarvian Water Dog (cão de água algarvio), or Portuguese Fishing Dog (cão pescador português).

Editorial summary

The public source identifies “Portuguese Water Dog” as dog breed. This brief keeps that definition visible, then builds a research path around Portuguese, Water and breed.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2013—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Portuguese, Water and breed providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Portuguese Water Dog”, the useful work is to connect “dog breed” to the records capable of establishing context and consequence.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 27, 2026. The linked authority identifier is Q38559. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2013.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Portuguese Water Dog”, its source revision and the description used here.
  2. Expand the search: follow Portuguese Water Dog primary sources, Portuguese Water Dog archive and Portuguese research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Portuguese Water Dog”?
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  3. Which institution is responsible for the underlying evidence?
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Source & attribution

This entry incorporates text from “Portuguese Water Dog” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.