- Afrikaans: Tessalonisense (af) pl or m pl
- Armenian: Թեսաղոնիկեցիներ (hy) (Tʻesaġonikecʻiner)
- Basque: Tesalonikarrei (eu) pl
- Breton: Tesalonikidi (br) m
- Cebuano: Tesalonica
- Chinese:
- Cantonese: 帖撒羅尼迦前後書 / 帖撒罗尼迦前后书 (tip3 saat3 lo4 nei4 gaa1 cin4 hau6 syu1)
- Eastern Min: 帖撒羅尼迦書 / 帖撒罗尼迦书 (Táik-sák-lò̤-nà̤-giă Cṳ̆)
- Mandarin: 帖撒羅尼迦前後書 / 帖撒罗尼迦前后书 (Tiěsāluóníjiā qiánhòushū)
- Corsican: Tessalonicesi (co)
- Czech: Tesalonickým
- Danish: Første Thessalonikerbrev n, Andet Thessalonikerbrev n
- Dutch: Tessalonicenzen (nl) m pl
- Estonian: Tessalooniklastele pl
- Faroese: Tessalonikabræv (fo) f
- Finnish: Tessalonikalaiskirje (fi)
- French: Thessaloniciens (fr) pl
- German: Thessalonicher (de)
- Greek: Θεσσαλονικείς (Thessalonikeís)
- Ancient: Θεσσαλονικεῖς m pl (Thessalonikeîs)
- Greenlandic: Thessalonikamiunut (kl)
- Hawaiian: Tesalonike
- Hungarian: Thesszalonikaiakhoz pl
- Icelandic: Þessaloníkubréf f
- Ido: Tesaloniani m pl
- Irish: Teasalónaigh (ga) m pl
- Italian: Tessalonicesi
- Japanese: テサロニケ人への手紙 (Tesaronikejin e no Tegami)
- Jarai: Têsalônik
- Latin: Thessalonicenses (la)
- Latvian: Tesaloniķiešiem (lv) m pl
- Limburgish: Thessalonicenze
- Lithuanian: Laiškai tesalonikiečiams (lt) f pl
- Maltese: L-Ittri lit-Tessalonkin
- Manx: Thessalonianee (gv)
- Maori: Teharonika (mi)
- Norwegian: Tessalonikerne (no)
- Polish: List do Tesaloniczan
- Portuguese: Tessalonicenses (pt)
- Romanian: Tesaloniceni m pl
- Scots: Thessalonians
- Scottish Gaelic: Tesalonianach (gd) m pl
- Slovak: Solúnčanom m pl
- Slovene: Tesaloničanom (sl) m pl
- Spanish: Tesalonicenses (es)
- Swahili: Wathesaloniki (sw) class 2
- Swedish: Thessalonikerbreven n pl
- Tagalog: Mga Taga-Tesalonica (tl) m pl
- Waray-Waray: Mga Taga Tesalonica
- Welsh: Thesaloniaid (cy) m pl
- West Frisian: Tessalonikers
- Zealandic: Tessalonicenzen
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