The Ier is a river in Romania and Hungary.

Ier may also refer to:

• Ier, the Romanian name for the river Száraz-ér in Romania and Hungary

The acronym IER may refer to:

• Instance équité et réconciliation, a Moroccan human rights commission
• Institute of Education and Research
• International Economic Review, an economics journal
• Interurban Electric Railway, a division of the Southern Pacific Railroad in the U.S.
• Institute for Energy Research, a nonprofit public policy think tank
• New South Wales Institute for Educational Research, an Australian educational research institute
• Individual Electoral Registration, a reform of electoral registration in the United Kingdom proposed by the Coalition Government
• IER (company), a subsidiary of the Bollore group which owns Source London and electric car charging infrastructure

This disambiguation page lists articles associated with the title Ier.
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