David Walker (born 25 January 1945) is an English singer and guitarist who has been front-man for a number of bands; most notably The Idle Race, Savoy Brown and Humble Pie, he also served briefly with Fleetwood Mac and Black Sabbath.

Walker was raised by his strict grandmother in a household where rock and roll was not allowed to be watched on television. His first experience with public singing came at a very young age at a Methodist church, where Dave volunteered to sing "Away in a Manger". As teenagers, Dave and his brother Mick formed a "backyard skiffle" group which played at weddings and youth gatherings.

Dave Walker started his career in 1960 with a Brumbeat R & B band called The Redcaps. The band was formed by Dave on rhythm guitar, his twin brother Mick Walker (born Michael Walker, 25 January 1945, in Walsall - died 25 February 2016) on bass guitar, Ronnie Brown on lead vocals, Ronnie's brother Roy Brown on lead guitar, Mac Broadhurst on saxophone, and Jimmy Richards on drums. Following an on-stage argument between Dave Walker and Ronnie Brown in 1962, Ronnie departed the band, leaving Dave to take on the role of lead vocalist; and following a tour of France in 1964 both Roy Brown and Jimmy Richards departed the band, and were replaced by Mick Blythe and Alan Morley (who later joined Chicken Shack) respectively.

They recorded three singles for Decca Records, who were trying to cash in on the success of The Beatles, as The Redcaps had opened for The Beatles in concert on four occasions. Their first single, in 1963, was a cover of the pulsating Isley Brothers's "Shout" backed by "Little Things You Do" an original, Beatles influenced tune written by Dave Walker and Roy Brown. However, Lulu had beaten The Redcaps to the British charts with her version of "Shout". Their next single, in 1964, was a cover of Chuck Berry's "Talking About You" backed by "Come on Girl". It has been rumoured that guitarist Jimmy Page, later of Led Zeppelin, played on "Talking About You", in his early pre-Yardbirds London session days, but Walker has since said Page does not play on this track. The story behind the rumour being that Page was available, if needed, but Redcaps guitarist Roy Brown handled the lead parts himself. The track was recorded in a different studio from where Page was working, on the day of the recording. Their final single, "Funny Things" an original tune penned by Blythe backed by "Mighty Fine Girl", was also released in 1964; but after all three singles flopped, The Redcaps disbanded in 1965.

Mick Walker died on 25 February 2016, aged 71.

Between 1965 and 1969 Walker played in Beckett, a band which included Pete Oliver, Don McGinty and Colin Timmons. Beckett played three days a week at the Rum Runner nightclub in Birmingham (which at the time was managed by Mick Walker), but they never recorded, and disbanded in late 1969.

In early 1970, Jeff Lynne left his original band, The Idle Race, to join The Move with former Idle Race guitarist Roy Wood; just prior to its evolution into the Electric Light Orchestra. Idle Race had built a substantial cult following in the Birmingham area, and wanted to continue after Lynne's exit. This resulted in the remaining members of the band (rhythm guitarist Dave Pritchard, drummer Roger Spencer, and bassist Greg Masters) recruiting Walker as lead vocalist and Mike Hopkins as lead guitarist.

In 1970 this new line-up recorded two singles for Liberty Records; a cover of Mungo Jerry's skiffle hit "In the Summertime", (which reached number one in Argentina) backed by an Idle Race original "Told You Twice". Their second single was a cover of Hotlegs' "Neanderthal Man" backed by another Idle Race original number "Victim of Circumstance".