Tilloy-lès-Conty (French pronunciation: [tilwa lɛ kɔ̃ti], literally Tilloy near Conty) is a former commune in the Somme department in Hauts-de-France in northern France. On 1 January 2019, it was merged into the new commune Ô-de-Selle.

The commune is situated 10 miles (16 km) south southwest of Amiens, on the D8e road

Historical population of Tilloy-lès-Conty

Year	1962	1968	1975	1982	1990	1999	2006
Population	214	217	176	196	220	228	250
From the year 1962 on: No double counting—residents of multiple communes (e.g. students and military personnel) are counted only once.

• The seventeenth century church of Notre-Dame

This is the ancient fief of the seigneurs of the Croy family, restored as a country house at the end of the 17th century. It consists of a garden and a 9-hectare park, with a little English garden filled with 165 varieties of roses.

A 6000-square-metre garden built by Michel Driencourt around a large 19th-century Picardie farm, in four sections:

• A shady garden with old Japanese cherry trees
• An inner courtyard
• An old orchard and vegetable garden
• A conservatory of ancient varieties

2500 varieties of shrubs and perennials are on show with collections of delphinium, iris, poppies, magnolia, hydrangea and Japanese maples.

• Communes of the Somme department