Türkiye Soyadları A sourced dictionary of Turkish surnames

SURNAMEEntry 927

Baysoy

Baysoy /bajˈsoj/

“a rich, noble lineage”1

Probable origin Baysoy: root entries for bay + soy · How do we know?

Published: Last updated:

Letters / syllables
6 / 2
Formation
1934 coinage
Vowel harmony
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Initial
B
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How do you pronounce Baysoy?

Baysoy

IPA /bajˈsoj/

The stress usually falls on syllable 2 (marked). In everyday Turkish, stress in surnames varies by speaker and region.

What does the surname Baysoy mean?

The name means “a rich, noble lineage”. In older Turkish bay describes a wealthy, noble person; today’s form of address “Bay”, “Mr”, was derived from it during the language reform. Soy means descent, family stock.1,2

Grammar Compound of bay + soy; not a dictionary headword.

That Baysoy goes back to bay and soy is probable rather than proven: the dictionaries cited agree on it.

What is Baysoy made of?

Baysoy is Turkic in origin and breaks into 2 parts: bay (rich; noble) + soy (lineage).

Baysoy ++ root bay rich; noble TURKIC bay “rich; Proto-Turkic *bāy,‘rich, noble’” suffix soy lineage TURKIC soy “lineage, descent” Baysoy bay root rich; noble bay TURKIC “rich; Proto-Turkic *bāy, ‘rich,noble’” soy suffix lineage soy TURKIC “lineage, descent”
Baysoy: parts and root words
  • bay Turkic — rich; Proto-Turkic *bāy, “rich, noble”1
  • soy Turkic — lineage, descent2

How was the name Baysoy formed?

Baysoy was formed by adding the suffix soy (“lineage”) to bay (“rich; noble”).

Shared note · 1934Surnames became compulsory with Surname Law No. 2525 of 21 June 1934.6

Which surnames are related to Baysoy?

Baysoy Aksoy Gürsoy Ulusoy Özsoy Ersoy Soysal
Circle area shows the number of bearers; dashed circle: no national count published. Solid line: same root; dashed line: same affix.
#SurnameRelationRankPeople
01 Aksoy same root – –
02 Gürsoy same root – –
03 Ulusoy same root – –
04 Özsoy same root – –
05 Ersoy same root – –
06 Soysal same root – –
07 Soylu same root – –
08 Atasoy same root – –
09 Baykara same root – –
10 Şensoy same root – –
11 Özbay same root – –
12 Akbay same root – –

Who are some well-known people named Baysoy?

  1. Ahmet Fevzi Baysoy politician 1861–1924
  2. Fehmi Baysoy politician 1916–1984
  3. Önder Baysoy politician 1946–2007
  4. Engin Baysoy researcher

People surnamed Baysoy as recorded in Wikidata, ordered by the number of Wikipedia language editions.

Which surnames have a meaning similar to Baysoy?

Aksoy, Demirsoy and Irk share gloss keywords with Baysoy within the same primary category.

Which guides add context to Baysoy?

Read the root, formation and register information for Baysoy alongside these guides: How Turkish Surnames Are Formed: Roots and Suffixes and How to research a Turkish surname and family tree.

Where do these facts come from?

All sources accessed 8 November 2026

  1. 1 Sevan Nişanyan Nişanyan Sözlük: bay
  2. 2 Sevan Nişanyan Nişanyan Sözlük: soy
  3. 3 Wikimedia Wiktionary: bay
  4. 4 Wikimedia Wiktionary: soy
  5. 5 Wikimedia Foundation Wikidata: people with this family name
  6. 6 T.C. Resmî Gazete / Mevzuat Bilgi Sistemi (mevzuat.gov.tr) Soyadı Kanunu (Kanun No. 2525)

Common questions about Baysoy

Q1

What does the surname Baysoy mean?

The name means “a rich, noble lineage”. In older Turkish bay describes a wealthy, noble person; today’s form of address “Bay”, “Mr”, was derived from it during the language reform. Soy means descent, family stock.
Q2

What is the origin of the surname Baysoy?

Baysoy is made up of two elements: bay ‘rich; Proto-Turkic *bāy, “rich, noble”’ (Turkic) and soy “lineage, descent” (Turkic).
Q3

How do you pronounce Baysoy?

Bay·soy, 2 syllables; IPA: /bajˈsoj/.