| Steigviliai | |
| Settlement Type: | Village |
| Pushpin Map: | Lithuania |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of Steigviliai |
| Coordinates: | 56.1833°N 25°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Aukštaitija |
| Subdivision Type2: | County |
| Subdivision Name2: | Šiauliai County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Pakruojis District Municipality |
| Subdivision Type4: | Eldership |
| Subdivision Name4: | Žeimelis eldership |
| Established Title: | First mentioned |
| Population Total: | 76 |
| Population As Of: | 2011 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Steigviliai (Polish: Stejgwile) is a village in the northeastern Pakruojis District Municipality, Lithuania. It is located north from Ūdekai and east of the Beržtalis river. According to the 2011 census, it had 76 residents. The village has many surviving authentic masonry and wooden residential houses and barns, including a windmill. Agricultural firm "Žiemagra" is based in the village.
Inventory of Guostagalis, taken during the Volok Reform in 1555, mentioned vogt Jonas Steigvilionis whose last name likely became the name of the village. He was vogt of Paberžtalė (i.e. by Beržtalis river) village, which had 30 voloks of land and 20 voloks of forest, but stood empty. Steigviliai village was mentioned in 1675 in baptismal records of a nearby church.
In the 19th century, the village was a "royal" village, i.e. exempted from corvée, and owned about 60 dessiatins of land. This enabled a few villagers to earn a decent living, educate their children, and join the Lithuanian National Revival. A few men from Steigviliai and neighboring villages organized illegal book smuggling during the Lithuanian press ban.
In 1903, one of the first Lithuanian evenings was held in a barn of Požėla, a farmer of Steigviliai. The villages performed a three-act drama Iš tamsos į šviesą (From Darkness to Light) by Adomas Sketeris, a writer and doctor from Žeimelis. The play depicted a son who refused his family's wishes for him to study at a priest seminary and instead finished a gymnasium and university. The spectators included Vincas Mickevičius-Kapsukas, the future Lithuanian communist political activist, who contributed a short description of the evening to Lithuanian newspaper Lietuva, published in the United States.
During the Soviet years (1945–1990), Steigviliai was part of a kolkhoz (collective farm), named after Karolis Požela, had an elementary school, which was located in farmstead previously owned by local farmer J. Valiulis, and a library.