Portslade is a western suburb of the city of Brighton and Hove in the ceremonial county of East Sussex, England.

The arrival of the railway from Brighton in 1840 encouraged rapid development of the coastal area and in 1898 the southern part, formerly known as Copperas Gap, was granted urban district status and renamed Portslade-by-Sea, making it distinct from Portslade Village.

Today, Portslade is bisected from east to west by the old A27 road (now the A270) between Brighton and Worthing, each part having a distinct character.

The east arm of Shoreham Canal Port, which includes the north and south basin quays, separates the pebble beach from the town centre.

Although there are no longer bustards here, there is remarkable wildlife, including the rare moth Sitochroa palealis, orchids and butterflies.

Portslade has been suggested as being the Roman port Novus Portus mentioned in Ptolemy's Geography of the 2nd century AD.

Indeed, the River Adur, whose mouth has moved many times due to longshore drift and erosion, was also named from this misidentification.

[citation needed] Portslade was listed in Domesday Book of 1086 as having two households, and was under the tenancy of William of Warenne, having a value of six shillings.

The process took over six years and made use of iron pyrite-rich nodules that could be found in the strata of Sussex greensand stone that emerges at this point in the coast.

While serving as Vicar of Holy Trinity, Bordesley, Birmingham in 1880, he paid the maximum price under the Act of prosecution and imprisonment in Warwick Prison.

[10] Edward Vaughan Hyde Kenealy QC (1819–1880) was an Irish born barrister, writer and poet who lived in Wellington Road, Portslade with his wife and eleven children from the 1850s until the mid-1870s.

The musical waves, the ethereal atmosphere, all make me feel as in the olden golden days when I was a boy and dreamed of Heaven".