Willem Johan Kolff

Dutch medical researcher (1911–2009)
Person human Q700136
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Willem Johan Kolff

Summary

Willem Johan Kolff is a human[1]. His place of birth was Leiden[2]. He was born on +1911-02-14T00:00:00Z[3]. He died in Delaware County[4]. He died on +2009-02-11T00:00:00Z[5]. He worked as a physician[6], internist[7], university teacher[8], rescue of Jews during the Holocaust[9], and resistance fighter[10]. He ranks in the top 0.72% of human entities by monthly Wikipedia readership (101 views/month, #7,223 of 1,000,298).[11]

Key Facts

  • Willem Johan Kolff was born in Leiden[2].
  • Willem Johan Kolff died in Delaware County[4].
  • Willem Johan Kolff was born on +1911-02-14T00:00:00Z[3].
  • Willem Johan Kolff died on +2009-02-11T00:00:00Z[5].
  • Among Willem Johan Kolff's spouses was Janke Cornelia Kolff-Huidekoper[12].
  • Willem Johan Kolff held citizenship in Kingdom of the Netherlands[13].
  • Willem Johan Kolff held citizenship in United States[14].
  • Dutch was Willem Johan Kolff's native language[15].
  • Willem Johan Kolff worked as a physician[6].
  • Willem Johan Kolff's professions included internist[7].
  • Willem Johan Kolff worked as a university teacher[8].
  • Willem Johan Kolff worked as a rescue of Jews during the Holocaust[9].
  • Willem Johan Kolff worked as a resistance fighter[10].
  • Willem Johan Kolff's professions included inventor[16].
  • Willem Johan Kolff's field of work was internal medicine[17].
  • Willem Johan Kolff's field of work was kidney transplantation[18].
  • Among Willem Johan Kolff's employers was University of Utah[19].
  • Willem Johan Kolff was educated at University of Groningen[20].
  • Willem Johan Kolff was educated at Leiden University[21].
  • Willem Johan Kolff received the Righteous Among the Nations[22].
  • Willem Johan Kolff received the Japan Prize[23].
  • Willem Johan Kolff received the Canada Gairdner International Award[24].
  • Willem Johan Kolff received the Harvey Prize[25].
  • Willem Johan Kolff received the Wilhelm Exner Medal[26].
  • Willem Johan Kolff received the Lasker-DeBakey Clinical Medical Research Award[27].

Body

Origins and Family

Born in Leiden[2], Willem Johan Kolff… he was born on +1911-02-14T00:00:00Z[3]. Dutch was his native language[15].

Education

Educated at University of Groningen[20], a public research university[28], in Netherlands[29], founded in 1614[30], headquartered in Groningen[31] and Leiden University[21], a university[32], in Netherlands[33], founded in 1575[34], headquartered in Leiden[35].

Career and Affiliations

Recorded occupations include physician[6], internist[7], university teacher[8], rescue of Jews during the Holocaust[9], resistance fighter[10], and inventor[16]. Fields of work include internal medicine[17], a medical specialty[36] and kidney transplantation[18], a surgical procedure type[37]. Willem Johan Kolff was employed by University of Utah[19].

Recognition

Awards received include Righteous Among the Nations[22], a title of honor[38], in Israel[39], founded in 1963[40]; Japan Prize[23], a science award[41], in Japan[42], founded in 1985[43]; Canada Gairdner International Award[24], a science award[44], in Canada[45], founded in 1959[46]; Harvey Prize[25], a science award[47], in Israel[48], founded in 1972[49]; Wilhelm Exner Medal[26], an award[50], in Austria[51], founded in 1921[52]; and Lasker-DeBakey Clinical Medical Research Award[27], a biomedical award[53], in United States[54].

Personal Life

Willem Johan Kolff was married to Janke Cornelia Kolff-Huidekoper[12].

Death and Burial

Willem Johan Kolff died on +2009-02-11T00:00:00Z[5]. He passed away in Delaware County[4].

Why It Matters

Willem Johan Kolff ranks in the top 0.72% of human entities by monthly Wikipedia readership (101 views/month, #7,223 of 1,000,298).[11] He has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[55] He is known by 23 alternative names across languages and contexts.[56]

He is credited with the discovery of hemodialysis[57].

FAQs

Where was Willem Johan Kolff born?

Willem Johan Kolff was born in Leiden[2].

Where did Willem Johan Kolff die?

Willem Johan Kolff died in Delaware County[4].

Who was Willem Johan Kolff married to?

Willem Johan Kolff's spouses include Janke Cornelia Kolff-Huidekoper[12].

What did Willem Johan Kolff do for work?

Willem Johan Kolff worked as physician[6], internist[7], university teacher[8], rescue of Jews during the Holocaust[9], and resistance fighter[10].

Where did Willem Johan Kolff go to school?

Willem Johan Kolff was educated at University of Groningen[20] and Leiden University[21].

What awards did Willem Johan Kolff receive?

Honors received include Righteous Among the Nations[22], Japan Prize[23], Canada Gairdner International Award[24], and Harvey Prize[25].

What did Willem Johan Kolff discover?

Willem Johan Kolff is credited as discoverer of hemodialysis[57].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . wikidata.org.
  3. [12] . wikidata.org.
  4. [13] . wikidata.org.
  5. [14] . wikidata.org.
  6. [20] . wikidata.org.
  7. [21] . wikidata.org.
  8. [17] . wikidata.org.
  9. [18] . wikidata.org.
  10. [15] . wikidata.org.
  11. [6] . The Righteous Among the Nations Database. wikidata.org.
  12. [7] . wikidata.org.
  13. [8] . wikidata.org.
  14. [9] . wikidata.org.
  15. [10] . wikidata.org.
  16. [16] . Retrieved . wikidata.org.
  17. [19] . wikidata.org.
  18. [22] . The Righteous Among the Nations Database. wikidata.org.
  19. [23] . wikidata.org.
  20. [24] . wikidata.org.
  21. [25] . harveypz.net.technion.ac.il. harveypz.net.technion.ac.il. Provenance: wikidata.org.
  22. [26] . wilhelmexner.org. wilhelmexner.org. Provenance: wikidata.org.
  23. [27] . laskerfoundation.org. laskerfoundation.org. Provenance: wikidata.org.
  24. [3] . BnF authorities. Retrieved . wikidata.org.
  25. [5] . BnF authorities. Retrieved . deseretnews.com. Provenance: wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [57] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [36] . Wikidata. wikidata.org. → on this site
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [42] . Wikidata. wikidata.org. → on this site
  16. [43] . Wikidata. wikidata.org. → on this site
  17. [44] . Wikidata. wikidata.org. → on this site
  18. [45] . Wikidata. wikidata.org. → on this site
  19. [46] . Wikidata. wikidata.org. → on this site
  20. [47] . Wikidata. wikidata.org. → on this site
  21. [48] . Wikidata. wikidata.org. → on this site
  22. [49] . Wikidata. wikidata.org. → on this site
  23. [50] . Wikidata. wikidata.org. → on this site
  24. [51] . Wikidata. wikidata.org. → on this site
  25. [52] . Wikidata. wikidata.org. → on this site
  26. [53] . Wikidata. wikidata.org. → on this site
  27. [54] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [11] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [55] . Wikidata sitelinks. wikidata.org.
  3. [56] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Willem Johan Kolff. Retrieved April 10, 2026, from https://4ort.xyz/entity/willem-johan-kolff
MLA “Willem Johan Kolff.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/willem-johan-kolff.
BibTeX @misc{4ortxyz_willem-johan-kolff_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Willem Johan Kolff}}, year = {2026}, url = {https://4ort.xyz/entity/willem-johan-kolff}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Willem Johan Kolff — https://4ort.xyz/entity/willem-johan-kolff (retrieved 2026-04-10)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 28d ago · ~2026-27212-20 · 2026-05-05 view diff on Wikidata ↗
    Great russian encyclopedia online id (2017) 5177660
    Native language Dutch
    Citizenship
    Employer University of Utah
    + 24 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1559]]: Willem Johan Kolff"
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