diff --git a/packages/gatsby/lib/schema/__tests__/infer-graphql-input-type.js b/packages/gatsby/lib/schema/__tests__/infer-graphql-input-type.js
index f5b4fae571217..d6f8b49128e1f 100644
--- a/packages/gatsby/lib/schema/__tests__/infer-graphql-input-type.js
+++ b/packages/gatsby/lib/schema/__tests__/infer-graphql-input-type.js
@@ -24,6 +24,10 @@ describe(`GraphQL Input args`, () => {
         title: `The world of dash and adventure`,
         blue: 100,
       },
+      anObjectArray: [
+        { aString: `some string`, aNumber: 2, aBoolean: true },
+        { aString: `some string`, aNumber: 2, anArray: [1, 2] },
+      ],
     },
     {
       name: `The Mad Wax`,
@@ -258,4 +262,30 @@ describe(`GraphQL Input args`, () => {
         expect(result.data.allNode.anArray[0].totalCount).toEqual(2)
       })
       .catch(err => expect(err).not.toBeDefined()))
+
+  it(`can query object arrays`, () =>
+    graphql(
+      schema,
+      `
+      {
+        allNode {
+          edges {
+            node {
+              anObjectArray {
+                aString
+                aNumber
+                aBoolean
+              }
+            }
+          }
+        }
+      }
+      `
+    )
+      .then(result => {
+        expect(result.errors).not.toBeDefined()
+
+        expect(result).toMatchSnapshot()
+      })
+      .catch(err => expect(err).not.toBeDefined()))
 })
diff --git a/packages/gatsby/lib/schema/create-type-name.js b/packages/gatsby/lib/schema/create-type-name.js
new file mode 100644
index 0000000000000..1a28ea6ca90ee
--- /dev/null
+++ b/packages/gatsby/lib/schema/create-type-name.js
@@ -0,0 +1,14 @@
+const _ = require(`lodash`)
+
+const seenNames = {}
+
+module.exports = function createTypeName(name) {
+  const cameledName = _.camelCase(name)
+  if (seenNames[cameledName]) {
+    seenNames[cameledName] += 1
+    return `${cameledName}_${seenNames[cameledName]}`
+  } else {
+    seenNames[cameledName] = 1
+    return cameledName
+  }
+}
diff --git a/packages/gatsby/lib/schema/infer-graphql-input-fields.js b/packages/gatsby/lib/schema/infer-graphql-input-fields.js
index aa03e2a433e11..dde2ec6cf11ff 100644
--- a/packages/gatsby/lib/schema/infer-graphql-input-fields.js
+++ b/packages/gatsby/lib/schema/infer-graphql-input-fields.js
@@ -10,8 +10,8 @@ const {
   GraphQLNonNull,
 } = require(`graphql`)
 const _ = require(`lodash`)
-const moment = require(`moment`)
 const typeOf = require(`type-of`)
+const createTypeName = require(`./create-type-name`)
 
 const {
   extractFieldExamples,
@@ -54,10 +54,11 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
 ) => {
   switch (typeOf(value)) {
     case `array`:
-      let headType = typeOf(value[0])
+      const headValue = value[0]
+      let headType = typeOf(headValue)
       // Check if headType is a number.
       if (headType === `number`) {
-        if (value[0] % 1 === 0) {
+        if (headValue % 1 === 0) {
           headType = `int`
         } else {
           headType = `float`
@@ -79,11 +80,17 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
         case `boolean`:
           inType = GraphQLBoolean
           break
+        case `object`:
+          inType = inferGraphQLInputFields(headValue, key, nodes).type
+          break
+        case `array`:
+          inType = inferGraphQLInputFields(headValue, key, nodes).type
+          break
       }
 
       return {
         type: new GraphQLInputObjectType({
-          name: _.camelCase(`${namespace} ${selector} ${key}QueryList`),
+          name: createTypeName(`${namespace} ${selector} ${key}QueryList`),
           fields: {
             ...typeFields(headType),
             in: { type: new GraphQLList(inType) },
@@ -93,7 +100,7 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
     case `boolean`:
       return {
         type: new GraphQLInputObjectType({
-          name: _.camelCase(`${namespace} ${selector} ${key}QueryBoolean`),
+          name: createTypeName(`${namespace} ${selector} ${key}QueryBoolean`),
           fields: {
             ...typeFields(`boolean`),
           },
@@ -102,7 +109,7 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
     case `string`:
       return {
         type: new GraphQLInputObjectType({
-          name: _.camelCase(`${namespace} ${selector} ${key}QueryString`),
+          name: createTypeName(`${namespace} ${selector} ${key}QueryString`),
           fields: {
             ...typeFields(`string`),
           },
@@ -111,7 +118,7 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
     case `object`:
       return {
         type: new GraphQLInputObjectType({
-          name: _.camelCase(`${namespace} ${selector} ${key}InputObject`),
+          name: createTypeName(`${namespace} ${selector} ${key}InputObject`),
           fields: inferInputObjectStructureFromNodes(nodes, key, namespace),
         }),
       }
@@ -119,7 +126,7 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
       if (value % 1 === 0) {
         return {
           type: new GraphQLInputObjectType({
-            name: _.camelCase(`${namespace} ${selector} ${key}QueryNumber`),
+            name: createTypeName(`${namespace} ${selector} ${key}QueryNumber`),
             fields: {
               ...typeFields(`int`),
             },
@@ -128,7 +135,7 @@ const inferGraphQLInputFields = (exports.inferGraphQLInputFields = (
       } else {
         return {
           type: new GraphQLInputObjectType({
-            name: _.camelCase(`${namespace} ${selector} ${key}QueryFloat`),
+            name: createTypeName(`${namespace} ${selector} ${key}QueryFloat`),
             fields: {
               ...typeFields(`float`),
             },
diff --git a/packages/gatsby/lib/schema/infer-graphql-type.js b/packages/gatsby/lib/schema/infer-graphql-type.js
index a0c73fa2315f6..e0ae83f871bf0 100644
--- a/packages/gatsby/lib/schema/infer-graphql-type.js
+++ b/packages/gatsby/lib/schema/infer-graphql-type.js
@@ -15,18 +15,7 @@ const isRelativeUrl = require(`is-relative-url`)
 const { store, getNode, getNodes } = require(`../redux`)
 const { addPageDependency } = require(`../redux/actions/add-page-dependency`)
 const { extractFieldExamples } = require(`./data-tree-utils`)
-
-const seenNames = {}
-const createTypeName = name => {
-  const cameledName = _.camelCase(name)
-  if (seenNames[cameledName]) {
-    seenNames[cameledName] += 1
-    return `${cameledName}_${seenNames[cameledName]}`
-  } else {
-    seenNames[cameledName] = 1
-    return cameledName
-  }
-}
+const createTypeName = require(`./create-type-name`)
 
 const inferGraphQLType = ({ value, selector, fieldName, ...otherArgs }) => {
   const newSelector = selector ? [selector, fieldName].join(`.`) : fieldName