Ronald Frederick Lane (1 April 1946 – 4 June 1997) was an English musician and songwriter who was the bassist and co-founder of the rock bands Small Faces (1965–69) and Faces (1969–73).

Lane formed Small Faces in 1965 after meeting Steve Marriott, with whom he subsequently wrote many of their hit singles including "All or Nothing", "Itchycoo Park" and "Lazy Sunday". After Marriott left Small Faces in 1968, band members Lane, Ian McLagan and Kenny Jones were joined by Rod Stewart and Ronnie Wood to form Faces. Like Small Faces, the band achieved critical and commercial success. Lane quit the Faces in 1973 and subsequently collaborated with other musicians, leading his own bands and pursuing a solo career. In 1977, he was diagnosed with multiple sclerosis. He was supported by charity projects and financial contributions from friends, former bandmates and fans. After living with the disease for 21 years, he died in June 1997, aged 51.

For his work in both Small Faces and Faces, Lane was inducted posthumously into the Rock and Roll Hall of Fame in 2012.

He had two children, and two stepchildren who took his name.

Lane was born in Plaistow Maternity Hospital, Plaistow, then a working-class area in Essex, to Elsie Lane and Stanley Lane, a lorry driver. Lane later described his father as a "saint" who would work a long workday and then return home to nurse his wife and two sons, all of whom were diagnosed with multiple sclerosis (MS) at different points in their lives. Doctors assured Lane as a child that the destructive disease was not necessarily inherited, although he found out later in his life that he had indeed inherited it.

After leaving school at the age of 16, Lane met Kenney Jones at a local pub, and they formed a group they named The Outcasts. Initially playing lead guitar, Lane quickly switched to bass. When shopping for a Harmony bass guitar, Lane visited the J60 Music Bar in Manor Park, London, where he met employee Steve Marriott. Lane bought his bass, and went to Marriott's house after work, where Marriott introduced him to his Motown and Stax record collection. Lane and Marriott set out to form a band, recruiting friends Jimmy Winston, who switched from guitar to organ, and Jones. Marriott was chosen to be the frontman and singer.

The Small Faces consisted of Lane on bass guitar, Marriott as guitarist and lead vocalist, Jones as drummer, and Winston on keyboards. (The name "Small" was chosen as they were each no taller than 5' 6" in height.) They made their debut in 1965, with Ian McLagan replacing Winston in November 1965. They had a successful chart career; Lane and Marriott wrote hit singles consistently, including "Itchycoo Park" and "All or Nothing". He co-wrote all but one of the tracks on their 1968 concept album Ogdens' Nut Gone Flake. The album stayed at number one on the UK Albums Chart for six weeks. When Marriott left the group in 1969, they disbanded.

Lane formed Faces with McLagan, Jones, Ronnie Wood and Rod Stewart in 1969. He shared composing or co-composing duties with Stewart, Wood, and McLagan. By 1972, with the band's frontman Stewart focusing on his own solo career, Lane took a central role during the recording of their fourth and final album, Ooh La La. Unhappy due to poor reviews of the album and Stewart's lack of commitment, Lane quit in 1973, making his last appearance on 4 June at the Sundown Theatre in Edmonton, London. He was replaced by Tetsu Yamauchi but tellingly the group made no further studio albums following Lane's departure, and split in 1975. According to McLagan, Lane would later regret leaving Faces. "Debris" was one of his more famous vocalist songs.