Sandiacre /ˈsændieɪkər/ is a village and civil parish in the borough of Erewash in Derbyshire, in the East Midlands region of England adjoining the border with Nottinghamshire. The population of the parish was 8,889 at the 2011 Census.

The name Sandiacre is usually thought to refer to a sandy acre, though another interpretation, based on Saint Diacre, is sometimes advanced. Sandiacre has a parish council rather than a town council and does not constitute a post town, but it is sometimes described as a town, with the local football and cricket clubs both being called "Sandiacre Town".

Seven miles west of Nottingham and nine miles east of Derby, Sandiacre is part of the Greater Nottingham urban area. It is on the western side of the River Erewash from Stapleford in Nottinghamshire. Sandiacre is adjoined by Long Eaton to the south and Risley to the west.

The parish church is Saint Giles' Church, which dates back to the 10th century. There is also a Methodist church in the town. The old village lock-up still exists, situated near to St. Giles.

The 1801 census recorded Sandiacre's population as 405; by 1901 this had risen to 2,954, with the 1971 census reporting a population of 7,792. The current population is now hovering at an estimated 9,000.

The discovery of local ironstone led to the development of Stanton Ironworks in 1787.

The Erewash Canal passes through the centre of Sandiacre, and the small basin immediately above Sandiacre Lock (No. 11 on the canal) was once the terminal link of the now-defunct Derby Canal. Situated next to the canal in the centre of Sandiacre is the Springfield Mill; it was built in 1888 as a lace mill and a reminder of Sandiacre's industrial heritage, and has since been converted into a modern apartment complex. The building suffered a large fire in April 2020, which caused extensive damage.

Examples of lace making and furniture making can still be found today.

The country's largest railway depot, Toton TMD, is located immediately south-east of Sandiacre, just over the border into Nottinghamshire.

Sandiacre was once served by Stapleford and Sandiacre railway station, which was situated along the border with Stapleford on the Erewash Valley line. It was opened in 1847 and closed in 1967.

The nearest National Rail station is now at Long Eaton, which is sited on the Midland Main Line. It is served by East Midlands Railway's inter-city services between Sheffield and London St Pancras, via Chesterfield, Derby and Leicester; they also provide services between Newark Castle, Derby and Crewe, and between Nottingham and Matlock. CrossCountry provide services between Nottingham, Birmingham and Cardiff.

Bus services in Sandiacre are provided primarily by Trent Barton and CT4N. Routes connect Sandiacre with Nottingham, Beeston, Stapleford, Long Eaton, Derby, East Midlands Airport and Ilkeston.

Junction 25 of the M1 motorway lies in Sandiacre, where it crosses the A52 Brian Clough Way.

The schools in Sandiacre are Ladycross Infants School, Cloudside Academy junior school and Friesland School – a secondary school with sixth form.

Sandiacre Town F.C. (established in 1978) play at St. Giles' Park. The first team compete in the Nottinghamshire Senior League Premier Division.

Sandiacre Town Cricket Club (established in 1877) play at the ground on Longmoor Lane. Sandiacre Town CC compete in the Derbyshire County Cricket League; the top level for recreational club cricket in Derbyshire, England, and is a designated ECB Premier League. Since the League was founded in 1999, Sandiacre have won 6 Championship league titles: 2002, 2004, 2012, 2015, 2017 and 2021. They have also been the winners of the ECB National Club Cricket Championship in 2003 and 2014.

• Sir John de Benstede was Prebendary of Sandiacre from 3 February 1297 until, presumably, 1308, when he married.
• John Barret, the Presbyterian minister, moved to Sandiacre in 1665 after losing the living of St Peter's Church, Nottingham in the Great Ejection.
• Enoch Cook, the Derbyshire county cricketer, was born in Sandiacre in 1845.
• Sławomir Rawicz, who claimed to be a Gulag escapee, was a resident of Sandiacre until his death in 2004, and is buried in the local cemetery.
• Charlie Thomson, Clyde, Chelsea and Nottingham Forest goalkeeper (1949–61), retired to Sandiacre.

• Crossley-Premier, manufacturer of heavy oil engines
• Listed buildings in Sandiacre

• Sandiacre History & Heritage site
• A tour of Sandiacre's heritage
• Sandiacre Community Hub