1978 United States Senate election in New Mexico

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{{Use mdy dates|date=September 2017}}

{{Infobox election

| election_name = 1978 United States Senate election in New Mexico

| country = New Mexico

| type = presidential

| ongoing = no

| previous_election = 1972 United States Senate election in New Mexico

| previous_year = 1972

| next_election = 1984 United States Senate election in New Mexico

| next_year = 1984

| election_date = {{Start date|1978|11|7}}

| image1 = File:Pete Domenici 1973.jpg

| image_size = x140px

| nominee1 = Pete Domenici

| party1 = Republican Party (United States)

| popular_vote1 = 183,442

| percentage1 = 53.41%

| image2 = File:Toney Anaya (NM) (cropped).png

| nominee2 = Toney Anaya

| party2 = Democratic Party (United States)

| popular_vote2 = 160,045

| percentage2 = 46.59%

| map_image = 1978 United States Senate election in New Mexico results map by county.svg

| map_size = 230px

| map_caption = County results
Domenici: {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}}
Anaya: {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}

| title = U.S. Senator

| before_election = Pete Domenici

| before_party = Republican Party (United States)

| after_election = Pete Domenici

| after_party = Republican Party (United States)

}}

{{ElectionsNM}}

The 1978 United States Senate election in New Mexico took place on November 7, 1978. Incumbent Republican U.S. Senator Pete Domenici successfully ran for re-election to a second term, defeating Democrat Toney Anaya. This election was the first time since 1934 that an incumbent Republican Senator from New Mexico was re-elected or won re-election and the first time since 1918 that an incumbent Republican Senator from New Mexico was re-elected or won re-election to this seat.