Since its creation, Theodore Tugboat has been dubbed into some languages other than English.
In Denmark, the series is known as "Slæbebåden Theodor". Its narrated by Povl Dissing.
- Seasons 4 and 5 were never dubbed in Danish.
- The show was first dubbed in Danish in 1997
- Theodore - Teodor
- Emily - Emilia
- Foduck - Lasse
- Hank - Hannu
- George - Jurmu
- The Dispatcher - Satamapäällikkö (The Dock Manager)
- Digby - Kalle
- Rebecca - Rebekka
- Northumberland - Huhmari
- Pearl - Helmi
- Bluenose - Sininokka
- Constance - Constans
- Bobby - Pasi
- Donald Dock - Aku Laituri
- Walter - Valtteri
- The Harbour Master - Satamamestari
- Seasons 4 and 5 were never dubbed in Finnish.
- In Seasons 1 and 2, the intro and credits were dubbed over
- The show was first dubbed in Finnish in 1997.
- Out of all of the seasons that have been dubed, season 2 has been dubed the most then seasons 1 and 3.
In France, the series is known as "Théodore le Remorqueur".
- Theodore - Théodore
- Emily - Émilie
- George - Georges
- Phillip - Philippe
- The Harbour Master - Capitaine du Port
- The Big Harbour - Le Grand Port
- Only Season 1 was dubbed in French.
- The Harbour Master is portrayed by Denis Mercier. This is the only foreign dub to feature an on-screen Harbour Master.
In Israel, the series was called "טדי ספינת הגרר" (Tedi Sfinat HaGrar, "Teddy the Tugboat"). It aired on the Hop! Channel during the early 2000s.
- Theodore - טדי (Teddy)
In Norway, the series is known as "Taubåten Theodor". It is narrated by Per Frisch
- Theodore - Theodor
- Foduck - Freddy
- George - Georg
- Hank - Henrik
- The Dispatcher - Trafikksjefen (The Trafic Chief)
- Digby - Ståle/Staale
- Pearl - Lisa
- Filmore - Felix
- Owan - Ove
- Snorri - Snorre
- Seasons 4 and 5 were never dubbed in Norwegian.
- The show was first dubbed in Norwegian in 1997
In Netherlands, the series is known as "Theodoor de Sleepboot". Its narrated by Jan Nonhof.
- Seasons 3, 4 and 5 were never dubbed in Dutch.
- The show was first dubbed in Dutch in 2012
In Sweden, the series is known as "Bosse Bogserbåt". Its narrated by Stefan Ekman. The show aired on SVT1.
- Theodore - Bosse
- Foduck - Fredrick
- George - Georg
- Hank - Hasse
- The Dispatcher - Chefen (The Chief)
- Pearl - Pärlan
- Seasons 4 and 5 were never dubbed in Swedish.
- The show was first dubbed in Swedish in 1997