some ORM for Delphi:

hcOPF – an ORM for Delphi

This Open Source Value Type Framework provides a base class (ThcObject) composed of attribute objects that can be automatically persisted to an object store (normally an RDBMS). An object persistence framework is essentially a library of pre-written code that takes care of the details of persisting, or permanently storing an object. The object may be persisted to a text file, XML file etc., but in the business world it will most likely be to an RDBMS and for this reason they are sometimes referred to as an ORM (Object Relational Mapper).

DObject

Macrobject DObject suite is an O/R Mapping component package to be used in Delphi. DObject O/R Mapping suite allows you to access database completely in the way of object-oriented. It includes OQL.Delphi, which is a strong-typed OQL (Object Query Language) based on native Delphi language, even you needn’t to write a single line of SQL statement based on string.

InstantObjects

InstantObjects offers: Model realization in the Delphi IDE via integrated two-way tool; Object persistence in the most common relational databases; Object presentation via standard data-aware controls.

SQLite3 Framework

The Synopse SQLite3 database Framework interfaces the SQlite3 database engine into pure Delphi code: database access, User Interface generation, security, i18n and reporting are handled in a safe and fast Client/Server AJAX/RESTful model.

tiOPF

The tiOPF is an Open Source framework for Delphi that simplifies the mapping of an object oriented business model into a relational database.

ORM for Delphi – Object Relational Mapping / Persistence Frameworks for Delphi