2019 Lithuanian constitutional referendum

{{Infobox referendum

| name = 2019 Lithuanian constitutional referendum

| country = Lithuania

| date = 12 May 2019

| outcome = Both measures rejected due to low turnout.

| voter_registration = 2486915

| part1_subject = Amendment of Article 55 of the Constitution to reduce the number of seats in the Seimas from 141 to 121

| part1_choice1= Yes

| part1_percentage1= 76.19

| part1_choice2= No

| part1_percentage2= 23.81

| part1_choice3= Invalid ballots

| part1_percentage3= 3.18

| part2_subject = Amendment of Article 12 of the Constitution to allow Lithuanians to hold dual citizenship

| part2_choice1= Yes

| part2_percentage1= 73.92

| part2_choice2= No

| part2_percentage2= 26.08

| part2_choice3= Invalid ballots

| part2_percentage3= 2.12

}}{{Politics of Lithuania}}

A constitutional referendum was held in Lithuania on 12 May 2019, alongside the first round of the presidential elections. Two proposals were put to voters – one to reduce the number of MPs in the Seimas from 141 to 121 and one to allow Lithuanians to hold dual citizenship with a list of countries meeting "European or transatlantic integration criteria," which would be determined by law.[https://bnn-news.com/week-in-lithuania-lithuania-to-hold-referendum-on-reducing-number-of-mps-197171 Week in Lithuania. Lithuania to hold referendum on reducing number of MPs] Baltic News Network, 17 February 2019 In order for the first constitutional amendment to be passed, voter turnout was required to be above 50%, and at least 33.3% of registered voters would have to vote in favour of the proposal. For the second amendment, at least 50% of registered voters would have to vote in favour of the proposal.

Despite 76% of those who voted voting in favour (equalling 35.3% of registered voters), the proposal to reduce the number of MPs failed as voter turnout (at 47%) was below the 50% threshold. The proposal on dual citizenship had a turnout of over 50% and was approved by 73% of those voting, but this amounted to only 38% of eligible voters.[https://www.delfi.lt/news/daily/lithuania/baigti-skaiciuoti-referendumu-rezultatai-referendumas-del-pilietybes-issaugojimo-ivyko-bet-balsu-uz-neuzteko.d?id=81148421 Baigti skaičiuoti referendumų rezultatai: referendumas dėl pilietybės išsaugojimo įvyko, bet balsų „už“ neužteko] Delfi, 13 May 2019