| Wikidata property for an identifier | Q19847637 |
| Wikidata property with datatype string that is not an external identifier | Q21099935 |
| Wikidata property related to classification schemes | Q108566342 |
| Wikidata property to indicate a constraint | Q21504947 |
| P973 | described at URL | https://www.pcre.org/current/doc/html/ |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/Archive/29#P1793 |
| P1630 | formatter URL | https://regex101.com/?regex=$1 | |
| P6104 | maintained by WikiProject | WikiProject property constraints | Q56162322 |
| P2302 | property constraint | single-value constraint | Q19474404 |
| format constraint | Q21502404 | ||
| subject type constraint | Q21503250 | ||
| property scope constraint | Q53869507 | ||
| allowed qualifiers constraint | Q21510851 | ||
| allowed-entity-types constraint | Q52004125 | ||
| P1659 | related property | applies if regular expression matches | P8460 |
| format as language specific regular expression | P8770 | ||
| Smithsonian trinomial format regex | P9790 | ||
| syntax clarification | P2916 | ||
| regular expression syntax | P4240 | ||
| P2668 | stability of property value | sometimes changes | Q24025284 |
| P1629 | Wikidata item of this property | regular expression | Q185612 |
| P2271 | Wikidata property example for properties | IMDb ID | P345 |
| Laws & Regulations Database of the Republic of China ID | P7242 | ||
| P2559 | Wikidata usage instructions | When used in property constraint, it should contain PCRE2 regular expression, treated as "full match". For example, "(?i)[a-z]+|\d+|" means that validated string should match /^(?:[a-z]+|\d+)$/i or be set to "no value" or "unknown value" |
| Q19847637 | Wikidata property for an identifier |
| Q24075706 | Wikidata property for authority control, with reciprocal use of Wikidata |
| Q118585133 | Wikidata property for authority control, with reciprocal use of Wikipedia |
| Q62619638 | Wikidata property linking to external MediaWiki wiki |
| Q185612 | regular expression | Wikidata property | P1687 |
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