Billy Greer

{{Short description|American musician}}

{{BLP sources|date=July 2011}}

{{Infobox musical artist

| name = Billy Greer

| image = Billy Greer (36113136641) (cropped).jpg

| landscape =

| caption = Greer performing in 2017

| birth_date = {{birth date and age|1952|1|26}}

| birth_place = Surgoinsville, Tennessee, U.S.

| alias =

| instrument = Bass guitar, vocals

| genre = Rock, progressive rock

| occupation = Musician

| years_active =

| associated_acts = Kansas, Streets, Seventh Key, Native Window

| website = {{URL|billygreer.com}}

}}

Billy Greer (born January 26, 1952){{cite web |url=http://www.potsw.org/Starter-Kit.txt |title=Archived copy |accessdate=2011-04-22 |url-status=dead |archiveurl=https://web.archive.org/web/20110727183246/http://www.potsw.org/Starter-Kit.txt |archivedate=2011-07-27 }} is an American musician who was the bass guitarist for the rock band Kansas from 1985 to 2024. He joined the band when they reformed, making his debut appearance on 1986's Power. He had previously worked with Kansas keyboardist/vocalist Steve Walsh in the band Streets, and works with his own band Seventh Key when not performing with Kansas. He also was a member of the 2009 Kansas side project Native Window along with Kansas members Phil Ehart, Richard Williams, and David Ragsdale.

In addition to performing, Greer manages his son's band 3 Story Fall and produces their music.