Liquidated damages are amounts that are fixed or specified, in contrast to unliquidated damages which require proof and determination by the court.

In the context of preliminary attachment, liquidated damages are associated with the payment secured by a cash deposit or counter-bond under Rule 57, Section 17, which secures "any judgment that the attaching party may recover in the action". This is distinct from unliquidated damages, which are damages sustained by reason of the attachment, recoverable against the surety bond under Rule 57, Section 20.