Lotus 34

{{Use dmy dates|date=May 2017}}

{{Use British English|date=May 2017}}

{{Racing car

| name = Lotus 34

| drivers = {{Flagicon|GBR}} Jim Clark
{{Flagicon|USA}} Dan Gurney
{{Flagicon|USA}} A. J. Foyt
{{Flagicon|USA}} Parnelli Jones

| team = Team Lotus

| tyres = Dunlop

| predecessor = Lotus 29

| technical ref = {{Cite web|url=https://www.ultimatecarpage.com/spec/6892/Lotus-34-Ford.html|title=1964 Lotus 34 Ford Specifications|website=Ultimatecarpage.com|access-date=3 April 2023}}

| chassis = aluminum monocoque

| front suspension = lower wishbones, top rockers, in-board coil springs over dampers, anti-roll bar

| rear suspension = reversed lower wishbones, single top links, twin radius arms, coil springs over shock absorbers, anti-roll bar

| length = 3,810 mm (150 in)

| width = 1,651 mm (65 in)

| height = 787 mm (31 in)

| debut = 1964 Indianapolis 500

| poles = 2

| designer = Colin Chapman
Len Terry

| wins = 4

| wheelbase = 2,438 mm (96 in)

| track = Front: 1,422 mm (56 in)
Rear: 1,422 mm (56 in)

| engine name = Ford 4,195 cc (256.0 cu in) OHV 90° V8, naturally aspirated, mid-engine longitudinal

| weight = 543 kg (1,197 lb)

| category = USAC IndyCar

| successor = Lotus 38

| gearbox name = ZF 2DS-20 2-speed manual gearbox.

| power = 425 bhp (317 kW)

| image = 1964Indy500LotusPole.jpg

}}

File:1964 Lotus 34 - June 2022 - Sarah Stierch.jpg in 2022.]]

The Lotus 34 is an open-wheel race car built by Team Lotus for the 1964 Indianapolis 500. Driven by Jim Clark, who qualified on pole, and Dan Gurney, tyre failure led to Clark retiring and Gurney being withdrawn.