Tokelau
New Zealand dollar (NZD)

Tonga
pa'anga (TOP)

Trinidad and Tobago
Trinidad and Tobago dollar (TTD)

Tunisia
Tunisian dinar (TND)

Turkey
Turkish lira (TRY); old Turkish lira (TRL) before 1 January
2005

Turkmenistan
Turkmen manat (TMM)

Turks and Caicos Islands
US dollar (USD)

Tuvalu
Australian dollar (AUD); note - there is also a Tuvaluan
dollar

Uganda
Ugandan shilling (UGX)

Ukraine
hryvnia (UAH)